WThe Block House was an old fort in the town of Melcombe, in Weymouth, Dorset, southern England. There are no visible remains today.
WBox Tunnel passes through Box Hill on the Great Western Main Line (GWML) between Bath and Chippenham. The railway tunnel is 1.83 miles (2.95 km) in length, straight, and descends on a 1 in 100 gradient from its eastern end. The west portal is Grade II* listed and the east portal is Grade II listed.
WA burh or burg was an Old English fortification or fortified settlement. In the 9th century, raids and invasions by Vikings prompted Alfred the Great to develop a network of burhs and roads to use against such attackers. Some were new constructions; others were situated at the site of Iron Age hillforts or Roman forts and employed materials from the original fortifications. As at Lundenburh, many were also situated on rivers: this facilitated internal lines of supply while aiming to restrict access to the interior of the kingdom for attackers in shallow-draught vessels such as longships.
WThe fortifications of Kingston upon Hull consisted of three major constructions: the brick built Hull town walls, first established in the early 14th century, with four main gates, several posterngates, and up to thirty towers at its maximum extent; Hull Castle, on the east bank of the River Hull, protecting Hull's river harbour, constructed in the mid 16th century and consisting of two blockhouses and a castle connected by a curtain wall; and the later 17th century Citadel, an irregular triangular, bastioned, primitive star fort replacing the castle on the east river bank.
WClifford's Fort was a defensive gun battery established near the mouth of the Tyne during the Anglo-Dutch Wars in the 17th century. It subsequently served as a submarine mining depot and survives today as a Scheduled Ancient Monument in the historic Fish Quay area of North Shields, Tyne and Wear, in North East England.
WDevil's Dyke or Devil's Ditch is a linear earthen barrier, thought to be of Anglo-Saxon origin, in eastern Cambridgeshire and Suffolk. It is now also a 98 acre biological Site of Special Scientific Interest. It runs in an almost straight line from Woodditton south of Newmarket to Reach north-west of Newmarket. It is also a Special Area of Conservation and a Scheduled Monument.
WThe fortifications of Kingston upon Hull consisted of three major constructions: the brick built Hull town walls, first established in the early 14th century, with four main gates, several posterngates, and up to thirty towers at its maximum extent; Hull Castle, on the east bank of the River Hull, protecting Hull's river harbour, constructed in the mid 16th century and consisting of two blockhouses and a castle connected by a curtain wall; and the later 17th century Citadel, an irregular triangular, bastioned, primitive star fort replacing the castle on the east river bank.
WOffa's Dyke is a large linear earthwork that roughly follows the current border between England and Wales. The structure is named after Offa, the Anglo-Saxon king of Mercia from AD 757 until 796, who is traditionally believed to have ordered its construction. Although its precise original purpose is debated, it delineated the border between Anglian Mercia and the Welsh kingdom of Powys.
WThe Gatehouse at Bonds Mill at Stonehouse, Gloucestershire, England, was constructed during World War II as a defensive pillbox as part of the Stop Line Green. It is a rare example of a two-storey pillbox with a rooftop gun emplacement and is a Grade II listed building. It is now used a visitor centre run by the Cotswold Canals Trust.
WWat's Dyke is a 40-mile (64 km) linear earthwork running through the northern Welsh Marches from Basingwerk Abbey on the River Dee estuary, passing east of Oswestry and on to Maesbury in Shropshire, England. It runs generally parallel to Offa's Dyke, sometimes within a few yards but never more than three miles (5 km) away. It now appears insignificant, sometimes a raised hedgerow and in other places is now no more than a cropmark, the ditch long since filled in and the bank ploughed away, but originally it was a considerable construction, considered to be strategically more sophisticated than Offa's Dyke. The date of construction is disputed, ranging from sub-Roman to the early ninth century.
WThe Westgate is a medieval gatehouse in Canterbury, Kent, England. This 60-foot (18 m) high western gate of the city wall is the largest surviving city gate in England. Built of Kentish ragstone around 1379, it is the last survivor of Canterbury's seven medieval gates, still well-preserved and one of the city's most distinctive landmarks. The road still passes between its drum towers. This scheduled monument and Grade I listed building houses the West Gate Towers Museum.