A gravity hill, also known as a magnetic hill, mystery hill, mystery spot, gravity road, or anti-gravity hill, is a place where the layout of the surrounding land produces an optical illusion, making a slight downhill slope appear to be an uphill slope. Thus, a car left out of gear will appear to be rolling uphill against gravity. There are hundreds of recognised gravity hills around the world.
Buckingham Mountain is located in Buckingham Township in Central Bucks County, Pennsylvania, in the United States. It is the second most elevated land in all of Bucks County at 520 feet.

Confusion Hill is a roadside attraction in Piercy, California. The attraction, which opened in 1949, includes what is dubbed as a "gravity house," a structure built to give the interior visitors tilt-induced optical illusions, similar to the perspective on a gravity hill. Occupants experience the need to stand upright when they actually already are. Also included in the attraction is the Mountain Train Ride a 1½ mile, 20 in narrow gauge built in a switchback layout along the side of a steep hill.

The Electric Brae is a gravity hill in Ayrshire, Scotland, where a freewheeling vehicle will appear to be drawn uphill by some mysterious attraction. The phenomenon is an optical illusion.

The Jogeshwari – Vikhroli Link Road (JVLR), is a 10.6-kilometre-long (6.6 mi) 6-lane road with a central median in Mumbai which connects the Western Express Highway and Eastern Express Highway providing speedier access from Jogeshwari in the Western Suburbs to Vikhroli in the Eastern Suburbs. It was opened to traffic in 1994, and widened from 2-lane to 6-lane road in 2012 at a cost of ₹221.45 crore.

Kalo Dungar or Black Hill is the highest point in Kutch, Gujarat, India, at 462 m (1,516 ft). It is located 97 km (60 mi) from District headquarters of Bhuj and 25 km (16 mi) from nearest town Khavda.

Laurel Caverns, is the largest cave in Pennsylvania by volume and area. Split into two sections, its entrance into the upper cavern is a network of interconnecting grid-like passages, while its unlit lower cavern, known as its branch-work, consists of subterranean watercourses into a dendritic system of passages. Laurel Caverns features an array of speleological and pseudokarsts formations. Its average temperature is 52°F. Located in Farmington, Pennsylvania, it sits on Chestnut Ridge near Uniontown, about 50 miles (80 km) southeast of Pittsburgh.

Magnet Hill is a "Cyclops hill" located near Leh in Ladakh, India. The layout of the area and surrounding slopes create the optical illusion of a hill. The hill road is actually a downhill road. Objects and cars on the hill road may appear to roll uphill in defiance of gravity when they are, in fact, rolling downhill. It is 7.5 km southeast of Nimmoo and 26.5 km west of Leh on Srinagar-Ladakh road.
The Magnetic Hill is an example of a gravity hill, a type of optical illusion created by rising and descending terrain. It is located at the northwestern edge of the city of Moncton in the Canadian province of New Brunswick.

Mainpat is a hill station and small village in the Surguja district in the northern part of the state of Chhattisgarh, India. It lies about 55 kilometres (34 mi) by road from Ambikapur. This hill station is 50 km south of divisional headquarter of Ambikapur, 160 km northeast of Korba, and 360 km northeast of state capital Raipur.

The Mystery Spot is a tourist attraction near Santa Cruz, California, opened in 1939 by George Prather. Visitors experience demonstrations that appear to defy gravity, on the short but steep uphill walk and inside a wooden building on the site. The Mystery Spot is a popular tourist attraction, and gained recognition as a roadside "gravity box" or "tilted house". At this roadside attraction, the laws of gravity and physics seem to disappear as balls roll uphill and people lean over past their toes without tumbling over.

The Oregon Vortex is a roadside attraction that opened to tourists in 1930, located on Sardine Creek in Gold Hill, Oregon, in the United States. It consists of a number of interesting effects, which are gravity hill optical illusions, but which the attraction's proprietors propose are the result of paranormal properties of the area.

Orroroo is a town in the Yorke and Mid North region of South Australia. At the 2016 census, the locality of Orroroo had a population of 610 while its urban centre had a population of 537. The Wilmington-Ucolta Road passes through here, intersecting with the RM Williams Way which leads to the Birdsville and Oodnadatta Tracks. The Peterborough–Quorn railway line extended from Peterborough to Orroroo also in 1881 and Quorn in 1882, connecting with the new Central Australia Railway from Port Augusta. These railways have now been abandoned. Orroroo is situated near Goyder's Line, a line drawn up in 1865 by Surveyor General Goyder which he believed indicated the edge of the area suitable for agriculture.

Pandariya is a town and nagar panchayat and development block in Kabirdham district in the Indian state of Chhattisgarh. This block is famous for the Dewanpatpar magnetic hill, 40 km north of Pandariya, which has an optical illusion of a gravity hill where vehicle seems to defy the gravity and roll up hill.

Polo is a municipality of the Barahona Province in southwestern Dominican Republic, known for its green and high mountains and for growing fine coffee.

Spook Hill is a gravity hill, an optical illusion where cars appear to roll up the spooky hill in Lake Wales, Florida.