In 1963, a man in the Turkish province of Nevşehir tore down a basement wall and found a massive underground metropolis. According to accounts from the period, the guy sledgehammered his wall and discovered a tunnel behind it, followed by further tunnels. Later exploration would find it to be an 18-story-deep underground city with chapels, schools, and stables. The … [Read more...] about When A Man Knocked Down The Wall of His Basement, He Found an Ancient Underground City That Could Accommodate 20,000 People