What lies beneath can be cold, damp and compelling. Learn about dry and wet caves, the creatures that live in them and the characteristics that create these natural settings. Here are five places to ...

Hidden cities. Salt mine shrines. Skull-encrusted catacombs. Glowworm cathedrals. Quell your wanderlust by scrolling through this gallery of the world’s most beautiful underground places. Image Credit ...

Join me as I Derinkuyu, the largest and deepest underground city in Turkey, believed to house up to 20,000 people. Discover its mysterious tunnels, ventilation shafts, and ancient construction methods ...