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 cave site, linked to Neolithic rituals, human bones, underground tunnels and primitive burials, has once again become … Read more
