Collection: Underground Cities Collection

In 1963, a man in Nevşehir Province, Turkey, was renovating his home when a basement wall caved in. Behind it: a tunnel. The tunnel led to chambers. The chambers connected to levels. The site descended approximately 85 meters into volcanic tuff and could shelter 20,000 people. He was never named in any report.

This collection runs from Derinkuyu — Phrygian construction circa 8th century BCE, expanded through the Arab-Byzantine wars — to the Cu Chi tunnels of Củ Chi District in Vietnam, 250 kilometers of network first dug in 1948. To Cheyenne Mountain, broken ground June 19, 1961, 693,000 tons of granite removed, 25-ton blast doors. The official cost was $142.4 million. The cities below are documented. The doors still close.

All the cities the surface didn't acknowledge. Below.