Sungnyemun Gate at night

1920 × 1200

ancient brick fortress gate

1024 × 768

Fortress on a Hill — Blue, Serene, Morning, Photograph

1600 × 1000

ancient fortress by a lake

1280 × 1024

Rumeli Fortress and Bosphorus

2750 × 1798

ornate palace gate under stormy sky

1680 × 1050

Red Fort in Delhi

1040 × 780

Medieval castle with towers

1088 × 634

A historic fort in India

1024 × 634

Lighthouse on a rocky island

1920 × 1080

ancient green cityscape

1385 × 955

Historic Korean fortress gate

1920 × 1200