Prehistoric Burial Cairns known as Clava Cairns are a complex of passage graves, standing stones, ring cairns, kerb cairns and the remains of a medieval chapel of an unknown date....
REAl UFO Videos 2020 Set
- Megaliths of 11 thousand years old were found in Turkey
- Traces of a civilization unknown to science discovered in Tibet
- Mysterious giant «dome» found on satellite images of Antarctica
- Material has been created that will allow you to catch gravitational waves
- When oxygen appeared on Earth, scientists have found out