Bulgaria
43 castles
Anevo Fortress castle
Bulgaria
Asen's Fortress castle
Bulgaria
Baba Vida castle
Bulgaria
Belogradchik Fortress fort
Bulgaria
Bozhenishki Urvich castle
Bulgaria
Byalgrad castle
Bulgaria
Castra Martis castrum
Bulgaria
Castra ad Montanesium castrum
Bulgaria
Cherven castle
Bulgaria
Devingrad castle
Bulgaria
Gate of Trajan castle
Bulgaria
Hisarlaka fortress
Bulgaria
Hisarya city walls
Bulgaria
Kaliakra castle
Bulgaria
Kipilovo Fortress fort
Bulgaria
Kovachevsko kale castrum
Bulgaria
Krakra Fortress castle
Bulgaria
Krivus castle
Bulgaria
Lovech fortress castle
Bulgaria
Lyutitsa castle
Bulgaria
Markeli fort
Bulgaria
Matochina Fortress castle
Bulgaria
Mezek Fortress castle
Bulgaria
Momina Kula castle
Bulgaria