Medieval church on a hill

1600 × 2133

Ruins of a medieval castle

3559 × 2505

Medieval fortress city

3300 × 2100

Medieval castle on a hill

3456 × 2296

Ancient Fortress on Hill — Green, Serene

4320 × 3240

knight on a hill with flag

1920 × 1080

ancient fortress under stormy sky

1862 × 1080

Medieval stone castle with flags

1600 × 1200

Bulgarian Fortress at Vidin

1108 × 768

Belogradchik Fortress

1280 × 891

Silhouettes at sunset with cross and flag

1680 × 1050

Bulgaria Black Sea Coast

1092 × 768