The city was discovered in the otherworldly region of Cappadocia in central Turkey. It is believed to consist of at least 3.5 miles (7km) of tunnels, secret churches, tombs and safe havens.

A MASSIVE underground city the size of 65 football fields which may have housed up to 20,000 people is slowly emerging from under the soft volcanic rock in the Cappadocia region of Turkey.

To a first-time American visitor, this is the essence of Turkey's mid-region of Cappadocia: Just when it feels utterly alien, it flashes a Western streak that catches you by surprise.

A 5,000 year-old underground city thought to be the largest in the world has been discovered in central Turkey. The subterranean settlement was discovered in the Nevşehir province of Turkey’s ...