trapezoidal ditch
11Linear Pottery culture — LBK redirects here. For other uses, see LBK (disambiguation). Not to be confused with Linear B. Map of European Neolithic at the apogee of Danubian expansion, c. 4500–4000 BC …
12Ouvrage Bersillies — Part of Maginot Line New Fronts, Séré de Rivières system Northern France …
13Othona — Coordinates: 51°44′06″N 0°56′24″E / 51.735°N 0.940°E / 51.735; 0.940 …
14canals and inland waterways — ▪ waterway Introduction natural or artificial waterways used for navigation, crop irrigation, water supply, or drainage. Despite modern technological advances in air and ground transportation, inland waterways continue to fill a vital …
15Alcazaba of Badajoz — Alcazaba de Badajoz Badajoz, Spain …
16Ouvrage La Salmagne — Part of Maginot Line New Fronts, Séré de Rivières system Northern France …
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