Belogradchik cliff rocks and wall at ancient Kaleto fortress, Bulgaria
Tag «fortress»
Burg Kreuzenstein castle near Leobendorf in Lower Austria, Austria
Village of Gößweinstein (Gössweinstein) in winter at dusk, Franconian Switzerland, Germany
Ancient medieval fortress on Kaliakra cape, Kavarna, Dobrich, Bulgaria
Summer aerial view of Suomenlinna Sveaborg sea fortress in Helsinki, Finland
