Cities Built Completely Inside Mountains

Cities Hidden Inside Mountains Radiocity By Radiocity Team Published Jul 09, 2025 [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Coober Pedy (Australia) A desert town where most residents live underground in dugouts within hillsides to escape extreme heat—homes, shops, and even churches. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Derinkuyu (Turkey) An ancient underground city that stretches 18 stories deep into soft volcanic rock—once home to over 20,000 people. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Setenil de las Bodegas (Spain) This Spanish town is built into giant overhanging cliffs—many homes are carved directly into the rock walls. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Cheyenne Mountain Complex (USA) A secure military installation hidden within a mountain in Colorado—designed to survive nuclear attacks and operate independently. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

Petra (Jordan) Though not a full city today, its stunning rock-cut structures once served as homes, temples, and tombs carved into rose-colored cliffs. [{ "selector": ".custom-gradient", "duration": "500ms", "fill": "forwards", "keyframes": [ { "offset": 0, "transform": "translateY(100px)" }, { "offset": 1, "transform": "translateY(0)" } ] }]

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