Related to astronomical observatory structures

ancient roman ruins

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Ancient Stone Arch

1600 × 1200

Ruined Stone Castle — Green, Serene

1920 × 1080

Ancient Stone Fortress — Gray, Dramatic, Photograph, Tower

1920 × 1200

ancient stone temple structure

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Stone circle in a wooded area

3264 × 2448

ancient stone fortress wall

3244 × 2240

Stone lion statues at a temple

2300 × 768

Woman holding flag in stone arch

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ruins of a stone tower

1920 × 1200

ancient stone fortress wall

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Ancient stone fortress with wooden bridge

4608 × 3072

Historic stone gateway with visitors

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ancient stone faces at angkor wat

1280 × 797

Cloister with stone arches

1920 × 1080

Stone bridge over moat at Tokyo Castle

1920 × 1080

castle with stone walls and moat

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Mayan Pyramid at Chichen Itza — Blue, Dramatic

1920 × 1080

Ajanta Caves Temple

1024 × 768

Ancient Greek Temple Ruins — Beige, Dramatic

1920 × 1200

Fortress with Domed Towers

1920 × 1080

Large Domed Mosque

1216 × 912

Festung Kufstein fortress

3008 × 2000

Forbidden City courtyard

2300 × 768