We ventured deep inside a river cave and found a mysterious blue hole. Could it lead to an underground spring, or something ...

Veryovkina Cave reveals more mysteries the deeper you go. Here’s everything that makes this cave a world of its own ...

While hiking deep in the woods, we unexpectedly stumbled upon a massive hidden pit—a hole in the forest that drops hundreds ...

Discover the mysterious depths of Jacobs Well Natural Area in Texas, a chilling swimming spot with a spooky reputation. Dive ...

The hole was about 10 meters across and five meters deep. A truck driven by the 74-year ... Prefectural officials say the first cave-in was likely caused by a ruptured sewage pipe, and the second ...