A giant underground city, believed to be one of the largest in the world, has been found in the Cappadocia region. Dating back as far as 5,000 years, this city is located near the Nevşehir fortress.

Nevsehir and the surrounding Cappadocia region is renowned as the home of a magnificent collection of underground cities and villages.

This city was discovered by chance, as construction workers demolished 1,500 buildings on top of it, as part of an urban renewal project. Yet, the discovery put a stop on their work, and excavation works began.
Being massive, the city had amenities like wineries, kitchens, stables, & chapels, or linseed presses used for the production of lamp oil to light the underground city.

The giant underground city is thought to have been a big, self-sustaining complex with many air shafts and water channels. Many scholars maintain these underground cities have been built to represent safe-spots in times of danger.
The Cappadocians would retreat underground, as the large stone doors could be closed from the inside, and each floor could be closed off separately.