Part 9/10:
In the Cappadocia region of Turkey lies Derinkuyu, a vast underground city constructed approximately 2,500 years ago. This multi-layered refuge could house up to 20,000 people and their livestock, highlighting the ancient people's ingenuity and foresight during times of threat.
The city's design included over 50 ventilation shafts, wells for water supply, and defensive features such as stone doors. Despite its decline in use over time, parts of Derinkuyu are still open for tourism, representing a significant achievement in ancient architecture and community planning.