Underground cave: An 8,000-year-old underground cave in southern Europe hides a mystery: people enter and never come back | World News
Another case study is a mysterious underground cave system in southern Europe. Scientists have found clues that people used this cave system about 8,000 years ago, but then disappeared without a trace, which has baffled archaeologists. The mysterious…
Houchengzui Stone City: This ancient Chinese megacity hides mysterious underground tunnels that have been buried for more than 4,000 years | World News
A huge ancient stone city in northern China that has been buried for thousands of years has become even more mysterious. Archaeologists working in Shicheng, Houchengzui, Inner Mongolia, have discovered a hidden network of underground tunnels dating back…
Lost miracle discovered underwater? 80-ton stone reveals secrets of Alexandria Lighthouse | World News
The discovery of massive 80-ton stone blocks on the seafloor, believed to be part of one of the wonders of the ancient world, the Lighthouse of Alexandria, has sparked interest in ancient engineering, maritime archeology and the study of the history of…