The only underground city where 20,000 people lived 18 floors deep – locals call it Turkey’s eighth wonder
When a Turkish man renovated his basement in 1963, he knocked down a wall and discovered something extraordinary: the world’s largest underground city where 20,000 people once lived 18 floors deep. This wasn’t just any archaeological find – it was Derinkuyu, the only place on Earth where an entire civilization thrived 280 feet below ground … Lire plus