Flooded fortress at sunset

1600 × 1200

Ancient Stone City — Gray

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Floating City in Clouds — Orange, Dramatic, Sunset

1280 × 1215

Flying Ship in Canyon City

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Floating City Ruins — Gray, Dramatic

1024 × 768

ancient ruin with glowing lights

1600 × 900

Futuristic Floating City — Gold, Dramatic

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Flying City on Alien Planet

1920 × 815

purple-robed figures in ancient city

1280 × 800

dragon over floating city

1920 × 1200

Sunset over a Russian fortress

1977 × 1080

ancient temple on water

800 × 600