
An observation tower is a structure used to view events from a long distance and to create a full 360 degree range of vision to conduct long distance observations. Observation towers are usually at least 20 metres (66 ft) tall and are made from stone, iron, and wood. Many modern towers are also used as TV towers, restaurants, or churches. The towers first appeared in the ancient world, as long ago as the Babylonian Empire.

A gyro tower, or panoramic tower, is a revolving observation tower with a vertical moving platform. A gyro tower's observation deck is not simply raised to provide its passengers a spectacular view, it is also rotated around the supporting mast, either once in the raised position or while traveling up and down the center mast.

An observation tower is a structure used to view events from a long distance and to create a full 360 degree range of vision to conduct long distance observations. Observation towers are usually at least 20 metres (66 ft) tall and are made from stone, iron, and wood. Many modern towers are also used as TV towers, restaurants, or churches. The towers first appeared in the ancient world, as long ago as the Babylonian Empire.

Akmeņrags Lighthouse - a lighthouse on the Latvian coast of the Baltic Sea, located to the south of the resort town of Pāvilosta. The lighthouse of Akmeņrags is a key navigation point, in one of the most dangerous spots on the Baltic Sea to navigate by - this is due to several factors: the lighthouse is located by a stony sand bank, which extends by a distance of 2 nautical miles to the north-west of the lighthouse; another point of danger is the depth of the sea - which is on average 2 metres in the lighthouse's vicinity. The location of the lighthouse has remained the same over the decade; however the coast has receded. The lighthouse has seen several shipwrecks during its existence - a notable one being the shipwreck of September 1923; when a famous Latvian steamer Saratow, which housed the Latvian Provisional Government for a period in 1919, struck the ground. The current tower was constructed in 1921, as the previous lighthouse was destroyed during World War I. Currently the lighthouse is open to the public, with its one hundred and twenty six steps reaching up to the viewing gallery.
The Almaty Television Tower, or simply Almaty Tower, is a 371.5-metre-high (1,219 ft) steel television tower built between 1975 and 1983 in Almaty, Kazakhstan. The tower is located on high slopes of Kok Tobe mountain south-east of downtown Almaty. Unlike other similar TV towers, it is not a concrete, but a steel tubular structure. It is the tallest free-standing tubular steel structure in the world.

The Amazon Tall Tower Observatory or ATTO is a scientific research facility in the Amazon rainforest of Brazil. Infrastructure includes a 325 metres (1,066 ft) tall tower that extends far above the forest canopy and two smaller towers that allow researchers to collect samples from the soil surface to above the forest canopy. Additionally, there are container-labs, a base camp and nearby sites for studying vegetation and soil processes. The tall research tower is one meter taller than the Eiffel Tower and is currently the tallest structure in South America. The two further towers are 80 metres (260 ft) in height. All towers are equipped with a broad range of instruments to measure chemical and physical properties of the atmosphere, such as greenhouse gas concentrations, aerosols and meteorological data.

Atakule is a 125 m (410 feet) high communications and observation tower located in the Çankaya district of central Ankara, Turkey, and is one of the primary landmarks of the city. As the district of Çankaya is itself on a hill, the tower can be spotted from almost anywhere in the city during clear days. The tower's design came from architect Ragıp Buluç and the construction works lasted from 1987 to 1989. The top section of the tower houses an open terrace and a revolving restaurant named Sevilla, which makes a full 360 degree rotation in one hour. On top of Sevilla is another restaurant, Dome, which is non-revolving and located directly under the cupola. Under the terrace is a café, named UFO. The bottom structures house a shopping mall and several indoor and outdoor restaurants. The tower was opened on 13 October 1989 by President Turgut Özal. Due to the ongoing rebuilding of the shopping mall, the tower is now closed to visitors.

The Avala Tower is a 204.68 m (672 ft) tall telecommunications tower located on Mount Avala, in Belgrade. The original tower was finished in 1965, but was destroyed on 29 April 1999, during the NATO bombing of Yugoslavia. The tower's reconstruction commenced on 21 December 2006 and it was officially opened on 21 April 2010.

Baghdad Tower (Arabic: برج بغداد, previously called International Saddam Tower, is a 205 m TV tower in Baghdad, Iraq. The tower opened in 1994 and replaced a communications tower destroyed in the Gulf War. A revolving restaurant and observation deck are located on the top floor. After the 2003 invasion of Iraq, the tower was occupied by American soldiers and was renamed, "Yessir Abbas Al Mansuri."

The Berlin-Müggelberge TV tower is the 31 metre tall base of a tower, never completed, in the Müggel hills of southeast Berlin, Germany. The tower base is currently used as radio relay link station.
The Brasilia Digital TV Tower is a broadcast tower which made digital television signal available for the whole Federal District and surroundings. It is also known as the “Flor do Cerrado”, the Cerrado flower. Initially planned to open to the public on April 21, 2010, as a celebration of the 50th anniversary of the City of Brasília, the tower was only inaugurated two years later on April 21, 2012.

The Brocken Transmitter is a facility for FM- and TV-transmitters on the Brocken, the highest mountain in northern Germany.

The Bungsberg telecommunications tower is a 179-metre-high telecommunications tower situated on the Bungsberg, a hill which is the highest point in the north German state of Schleswig-Holstein.

Copenhagen Zoo is a zoological garden in Copenhagen, Denmark. Founded in 1859, it is one of the oldest zoos in Europe and is a member of EAZA. It comprises 11 hectares and is located in the municipality of Frederiksberg, sandwiched between the parks of Frederiksberg Gardens and Søndermarken. With 1,161,388 visitors in 2008 it is the most visited zoo and 4th most visited attraction in Denmark. The zoo is noted for its new Elephant House designed by British architect Sir Norman Foster. The zoo maintains and promotes a number of European breeding programmes.

Euromast is an observation tower in Rotterdam, Netherlands, designed by Hugh Maaskant constructed between 1958 and 1960. It was specially built for the 1960 Floriade, and is a listed monument since 2010. The tower is a concrete structure with an internal diameter of 9 m (30 ft) and a wall thickness of 30 cm (12 in). For stability it is built on a concrete block of 1,900,000 kg (4,200,000 lb) so that the centre of gravity is below ground. It has a "crow's nest" observation platform 96 m (315 ft) above ground and a restaurant. Originally 101 m (331 ft) in height it was the tallest building in Rotterdam. It lost this position to the high-rise of Erasmus MC which was completed in 1968, but regained it when the Space Tower was added to the top of the building in 1970, giving an additional 85 m (279 ft). Euromast is the highest building of the Netherlands, it is also a member of the World Federation of Great Towers. In 2008 and 2009, the tower hosted an extreme sports event which featured BASE jumping.

The Faro de Moncloa is a 92-metre (302 ft)-high transmission tower with an observation deck at the Plaza De Moncloa, Madrid, Spain. It was project by architect Salvador Pérez Arroyo and built in 1992. The tower was closed to the public from 2005 to 2015, when new safety regulations were introduced after the Windsor Tower fire took place earlier that year. It reopened to the public in April 2015.

The Berliner Fernsehturm or Fernsehturm Berlin is a television tower in central Berlin, Germany.

The Fernsehturm Heidelberg is a transmission tower for FM and DVB-T on the Königstuhl hill of Heidelberg at 49°24′16″N 8°43′46″E. It was the property of the City of Heidelberg and sold to the SWR. Because of its exposed location on the crest of the hill the tower itself is only 82 meters high.

Fernsehturm Stuttgart is a 216.61 m (710.7 ft) telecommunications tower in Stuttgart, Germany. It was the first telecommunications tower in the world constructed from reinforced concrete, and it is the prototype for many such towers worldwide. Although controversial at first, it quickly became a well known landmark of Stuttgart and a tourist attraction.

The Florianturm is a telecommunications tower and landmark of Dortmund (Germany). It is named after St. Florian, the patron saint of gardeners.

Fukuoka Tower is a 234-metre (768 ft) tall tower located in the Momochihama area of Fukuoka, Japan. It is the tallest seaside tower in Japan. The highest observation deck at 123m has a 360degree view of the surrounding area, the most popular time to visit is at sunset. Fukuoka Tower was finished in 1989, taking a total of 14 months to build at a cost of ¥6,000,000,000. It was designed by Nikken Sekkei. It was built on reclaimed land out of Hakata Bay.
Hançerkale is the popular name given to a Byzantine observation tower ruin in Mersin Province, Turkey.

Jakobsberg Telecommunication Tower is a 142-metre-tall TV tower built of reinforced concrete on the 238-metre-high elevated Jakobsberg near Porta Westfalica. Jakobsberg Telecommunication Tower was built May 1, 1974 and September 28, 1978 as replacement for a small telecommunication tower also equipped with an observation deck, which was built in 1952 on the site of the former Bismarck column, erected in 1902. Jakobsberg Telecommunication Tower is equipped with a room for technical equipment in a height of 50 metres and an observation deck in a height of 23.25 metres. Its main purpose is the transmission of television and radio signals, since 2006 the television signals are sent in DVB-T. For access to the observation deck, there is a stairway running like a srewline around the tower. This stairway gives the lowest sections of Jakobsberg Telecommunication Tower, which is property of Deutsche Telekom, its characteristic design.

The Jeddah TV Tower in Jeddah, Saudi Arabia is a 250-metre-high (820 ft) television tower with an observation deck. The tower was completed in 2006.

The Kamzík TV Tower is a 196-metre (643 ft) tall television transmission tower in the Koliba area of Bratislava, the capital of Slovakia. The tower sits 437 m (1,434 ft) above sea level on the Kamzík hill, part of the Little Carpathians, overlooking much of the city. The tower lies within the territory of the Bratislava Forest Park. It was constructed in 1975, replacing a previous transmission tower. The tower was designed by architects Stanislav Májek, Jakub Tomašák, Juraj Kozák, Milan Jurica and Ján Privitzer.
Kékestető TV Tower is a 176-metre (577 ft) tall multifunctional transmitter built of reinforced concrete on the 1,014-metre (3,327 ft) high Kékes mountain, Hungary. It is also an observation tower, including a restaurant.

The Kulpenburg TV tower is a 94-metre-high (308 ft) telecommunication tower on Kulpenberg mountain in Thuringia, Germany. It was built of reinforced concrete between 1959 and 1964 and has an observation deck and a restaurant at a height of 76 metres (249 ft). The observation deck and the restaurant are closed to visitors.

The Lukasrand Tower is located on Muckleneuk Hill in the Lukasrand suburb of Pretoria, Tshwane Metropolitan Municipality, Gauteng, South Africa. Its primary purpose is wireless telecommunications. It also features an observation deck. The tower is dressed with branding signs for Telkom SA. For a time, the tower also sported a 24-metre, eight storey high, fibreglass soccer ball, for the 2010 World Cup.
The Mashan Broadcasting and Observation Station is a historical broadcasting station and observation tower in Jinsha Township, Kinmen County, Fujian Province, Republic of China.

The Minar was a staged, tower-like structure built in the center of the Sasanian circular city of Gōr. Several theories have been proposed for its purpose. Only the core of the structure remains today.

The N Seoul Tower (Korean: N서울타워), officially the YTN Seoul Tower and commonly known as the Namsan Tower or Seoul Tower, is a communication and observation tower located on Namsan Mountain in central Seoul, South Korea. The 236-meter (774 ft)-tall tower marks the second highest point in Seoul.

The Nagoya TV Tower is a TV tower in Nagoya, central Japan.

O'Hara's Tower was a watchtower in the British Overseas Territory of Gibraltar. It was located at the highest point of the Rock of Gibraltar, at what is now O'Hara's Battery, near the southern end of the Upper Rock Nature Reserve.
Ostankino Tower is a television and radio tower in Moscow, Russia, owned by the Moscow branch of unitary enterprise Russian TV and Radio Broadcasting Network. Standing 540.1 metres (1,772 ft), Ostankino was designed by Nikolai Nikitin. It is currently the tallest free-standing structure in Europe and 11th tallest in the world. Between 1967 and 1974, it was the tallest in the world. The tower was the first free-standing structure to exceed 500 m (1,600 ft) in height. Ostankino was built to mark the 50th anniversary of the October Revolution. It is named after the surrounding Ostankino district of Moscow.

OTE Tower is a 76-metre-tall tower located in the Thessaloniki International Exhibition Center in central Thessaloniki, Greece. The tower opened in 1966 and was renovated in 2005.

The Philippine Diamond Tower (PDT) was a proposed broadcast and observation tower to be built in the former Manila Seedling Bank property in QC CBD Triangle Park- North Triangle, Quezon City, Metro Manila, Philippines. The groundbreaking for the tower was initially scheduled to take place last 12 October 2014, in line with Quezon City's 75th foundation anniversary. Construction of the tower was planned to take place in mid 2015 and was planned to be completed in 2019.

The Prudential Tower, also known as the Prudential Building or, colloquially, The Pru, is an International Style skyscraper in Boston, Massachusetts. The building, a part of the Prudential Center complex, currently stands as the 2nd-tallest building in Boston, behind 200 Clarendon Street, formerly the John Hancock Tower. The Prudential Tower was designed by Charles Luckman and Associates for Prudential Insurance. Completed in 1964, the building is 749 feet (228 m) tall, with 52 floors, and is tied with others as the 96th-tallest in the United States. It contains 1.2 million sq ft (110,000 m2) of commercial and retail space. Including its radio mast, the tower stands as the tallest building in Boston, rising to 907 feet (276 m) in height.
Pyongyang TV Tower is a free-standing concrete TV tower with an observation deck and a panorama restaurant at a height of 150 metres (490 ft) in Pyongyang, North Korea. The tower stands in Kaeson Park in Moranbong-guyok, north of Kim Il-sung Stadium. The tower broadcasts signals for Korean Central Television.

The Rheinturm is a 240.5-metre-high (789 ft) concrete telecommunications tower in Düsseldorf, capital of the federal state (Bundesland) of North Rhine-Westphalia, Germany. Construction commenced in 1979 and finished in 1981. The Rheinturm carries aerials for directional radio, FM and TV transmitters. It stands 174.5 metres high and houses a revolving restaurant and an observation deck at a height of 170 metres. It is the tallest building in Düsseldorf.

The Riga Radio and TV Tower in Riga, Latvia is the tallest tower in the European Union. It was built between 1979 and 1989 with funding from the central government of the Soviet Union. Its highest point reaches 368.5 metres (1,209 ft), which makes it the third tallest tower in Europe and the 16th tallest self-supporting tower in the world.

Saint Petersburg Television Tower is a 326 m (1,070 ft) Russian steel lattice television tower in Saint Petersburg, Russia. Being the first dedicated television tower in the Soviet Union, the Saint Petersburg TV Tower is utilized for transmitting for FM-/TV-broadcasting throughout the federal city.

The Sapporo TV Tower , built in 1957, is a 147.2-metre-high (483 ft) TV tower with an observation deck at a height of 90.38 metres. Located on the ground of Odori Park, in the northern city of Sapporo, Hokkaido, Japan, the tower is open to tourists. Tourists can view Sapporo and Odori Park.

The Sky Tower is a telecommunications and observation tower in Auckland, New Zealand. Located at the corner of Victoria and Federal Streets within the city's CBD, it is 328 metres (1,076 ft) tall, as measured from ground level to the top of the mast, making it the tallest freestanding structure in the Southern Hemisphere and the 27th tallest tower in the world. It has become an iconic landmark in Auckland's skyline due to its height and unique design.
The Tallinn TV tower is a free-standing structure with an observation deck, built to provide better telecommunication services for the 1980 Moscow Summer Olympics regatta event. It is located near the suburb Pirita, six km north-east of the Tallinn city center. With its 313 m (1030.2 ft), the TV tower is the tallest building in Tallinn. The tower was officially opened on 11 July 1980. The viewing platform at a height of 170 metres was open to the public until 26 November 2007, when it was closed for renovation. The tower began receiving visitors again on 5 April 2012. The building is administered by the public company Levira and is a member of the World Federation of Great Towers.

The Tashkent Television Tower is a 375-metre-high (1,230 ft) tower, located in Tashkent, Uzbekistan and is the 12th tallest tower in the world. Construction started in 1978 and it began operation 6 years later, on 15 January 1985. It was the 4th tallest tower in the world from 1985 to 1991. Moreover, the decision of construction Tashkent Tower or TV-Tower of Uzbekistan was decided in 1971 in 1 September in order to spread the TV and radio signals to all over the Uzbekistan. It is of a vertical cantilever structure, and is constructed out of steel. Its architectural design is a product of the Terxiev, Tsarucov & Semashko firm.

Telstra Tower is a telecommunications tower and lookout that is situated above the summit of Black Mountain in Australia's capital city of Canberra. It is named after Australia's largest telecommunications company, Telstra Corporation, which owns and operates the tower. Rising 195.2 metres (640 ft) above the mountain summit, it is a landmark in Canberra and offers panoramic views of the city and its surrounding countryside from an indoor observation deck and two outdoor viewing platforms.

The Tiger Sky Tower, previously known as Carlsberg Sky Tower, was the highest observation tower in Singapore. It is located in the Imbiah Lookout zone in the centre of Sentosa Island. It was opened on 7 February 2004 and closed on 28 December 2018.

Tokyo Skytree is a broadcasting and observation tower in Sumida, Tokyo. It became the tallest structure in Japan in 2010 and reached its full height of 634 meters (2,080 ft) in March 2011, making it the tallest tower in the world, displacing the Canton Tower, and the second tallest structure in the world after the Burj Khalifa (829.8 m/2,722 ft).

Torre de Collserola is a uniquely designed tower located on the Tibidabo hill in the Serra de Collserola, in Barcelona, Catalonia, Spain. It was designed by the architect Sir Norman Foster and by the Spanish civil engineers Julio Martínez Calzón and Manuel Julià Vilardell. This emblematic tower was built in 1991 by the construction company Cubiertas y MZOV S.A. for the 1992 Summer Olympics. It features a pod for floor space like many towers but uses guy wires for lateral support like a mast. Mainly used as a TV and radio transmitter, this futuristic design provides the highest viewpoint over the city. The top antenna reaches 288.4 m (946 ft) and the top of the pod, which has thirteen floors, reaches 152 m (499 ft). The highest point of this tower is the highest place one could be in the city of Barcelona. The tenth floor of the pod is open to the public.

Torre Entel is the name of a 127.4 metres (418 ft) high TV and telecommunications tower in Santiago, Chile. Torre Entel has an observation deck open for visitors. Construction began in 1970 during Eduardo Frei Montalva term as president and it was inaugurated in 1974. In 1976 it carried its first television transmissions. For many years it was the tallest building in Chile and today remains a symbol of Santiago. The tower is constructed of concrete, steel, and aluminum.
Tortoise Mountain TV Tower is a 311.4 metres (1,022 ft) high TV Tower in Hanyang District, Wuhan, Hubei, China.. It is a concrete tower equipped with an observation deck in a height of 221.2 metres (726 ft). It does not stand directly upon the hill, which is occupied by an ancient temple complex. Guishan TV Tower is China's first self-developed TV tower, opened in 1986.

Dubai Creek Tower is a supported observation tower under construction located in Dubai, United Arab Emirates, at a preliminary cost of AED 3.67 billion, and is expected to be completed in 2022 at the earliest. The tower was initially known as The Tower at Dubai Creek Harbour.

The Turkmenistan Tower is a communications and observation tower in Ashgabat, Turkmenistan. It was completed in 2011. At 211 meters, the tower is the tallest structure in Turkmenistan.

The Vilnius TV Tower is a 326.5 m (1,071 ft) high tower in the Karoliniškės microdistrict of Vilnius, Lithuania. It is the tallest structure in Lithuania, and is occupied by the SC Lithuanian Radio and Television Centre.

Zagreb TV Tower is a 169-metre (563 ft) tall TV and radio tower built of reinforced concrete on the summit of the 1035 metre (3450 ft) tall peak Sljeme of the Medvednica mountain north of Zagreb, Croatia.

The Zotino Tall Tower Observation Facility (ZOTTO) is a climatic research station in the Siberian taiga in the proximity of Zotino, Russia, established and operated by the Max Planck Society and the Sukachev Institute of Forest, it serves as a long-term observing platform to be operated for at least 30 years.