Why is There a City for 20,000 People Under Turkey?
Why is There a City for 20,000 People Under Turkey?  
Podcast: Decoding The Unknown
Published On: Tue Apr 14 2026
Description: Beneath Cappadocia lies Derinkuyu, a vast underground city hiding ancient secrets. Who built it, why, and when? Explore history, mystery, and theories behind one of Earth’s most astonishing hidden worlds. Learn more about your ad choices. Visit megaphone.fm/adchoices