Wasenbourg

Ouvrage Lembach was a petit ouvrage of the Maginot Line. Lembach was

Blumenstein Castle is a castle ruin in the Palatinate Forest in

Ouvrage Four à Chaux was a grand ouvrage of the Maginot Line, located

Château du Fleckenstein is a castle in the commune of Lembach, in the

Ouvrage Hochwald is a gros ouvrage of the Maginot Line, one of the

The Wegelnburg is a ruined castle near Schönau in the Palatinate

Ouvrage Simserhof was a gros ouvrage of the Maginot Line, located near

Drachenfels Castle is a castle ruin near Busenberg in the Palatinate

Rumkale was a powerful fortress on the river Euphrates, 50 km

Tsarevets (Bulgarian: Царевец) is a medieval stronghold located on a h

Tustan  was a Medieval cliff-side fortress-city and customs site of

The Rock of Cashel (Gaeilge. Carraig Phadraig), also known as Cashel

Hammershus is Northern Europe's largest medieval fortification,