scarp wall
51Moat — For information on the moat of a tropical cyclone, see eye (cyclone). For the gunman, see Raoul Moat. The moated manor house of Baddesley Clinton in Warwickshire, England A moat is a deep, broad ditch, either dry or filled with water, that… …
52Cheval de frise — at the Confederate Fort Mahone defenses at Siege of Petersburg The cheval de frise (plural: chevaux de frise) was a Medieval defensive obstacle consisting of a portable frame (sometimes just a simple log) covered with many long iron or wooden… …
53Battlement — Castellated redirects here. For the hardware item, see castellated nut. 9th cent. BC relief of an Assyrian attack on a walled town with battlements …
54Ravelin — The ravelin outside the Land Gate at Tilbury Fort The …
55Jersey barrier — 42 inch (110 cm) high version of the Jersey barrier for deflecting automobiles and semi trailer trucks. A Jersey barrier or Jersey wall is a modular concrete barrier employed to separate lanes of traffic. It is designed to both minimize… …
56Czech hedgehog — Examples of Czech hedgehogs deployed on the Atlantic Wall in the vicinity of Calais …
57Coastal artillery — 19th century coastal artillery guns preserved in Suomenlinna fortress in Helsinki. Coastal artillery is the branch of armed forces concerned with operating anti ship artillery or fixed gun batteries in coastal fortifications.[1] It has be …
58Dragon's teeth (fortification) — Not to be confused with Czech hedgehog . United States Army troops passing through dragon s teeth on the Siegfried Line in 1944 …
59Ward (fortification) — In fortifications, a bailey or ward refers to a courtyard enclosed by a curtain wall. In particular, an early type of European castle was known as a Motte and bailey. Castles can have more than one ward. Their layout depends both on the local… …
60St Kilda, Scotland — Infobox Scottish island latitude=57.8 longitude= 8.6 GridReference=NF095995 celtic name=Hiort norse name=Possibly Skildir meaning of name= Unknown, possibly Gaelic for westland area= 854.6 ha area rank= highest elevation= Conachair 430 m… …
