These 20 Unsolved Mysteries Will Leave You Guessing: Number 5 Is Heartbreaking

14. The Wow! Signal

007-14-the-wow-signal-ade647012dc2cb5b283473a1a294169bThe Big Ear radio telescope received an unidentified deep space transmission in the summer of 1977. The 72-second transmission originated from the Sagittarius constellation. The Wow! signal remains the best evidence for intelligent life in space. To this day there is no explanation for the meaning of the transmission or what sent it.

 

13. Bermuda Triangle

008-13-bermuda-triangle-5879bf047d9bed7e55ffeaecbc71895cThe Bermuda Triangle is a triangle of coordinates near the Bermuda Islands in the Caribbean Sea. Within these coordinates, numerous ships throughout the centuries have either disappeared or lost all radio signal. Some believe that storms are the cause of these crashes and radio disturbances, but that doesn’t explain the high frequency of problems in the area.

 

12. Lost Colony Of Roanoke

009-12-lost-colony-of-roanoke-01ebef35f44d808a54c5726f88fdd935Ever seen an entire city disappear? While the conditions in the 16th century were much different, the lost Roanoke Colony remains an intriguing story. Numerous rumors surround the fate of the 115 colonists at Roanoke. Could they have been murdered? Did they leave due to harsh weather? They could have even decided to integrate with the Native Americans. Nobody has a definitive answer of what happened to the colony.

 

11. Fate Of The Incas

010-11-fate-of-the-incas-1014937What ever happened to the Inca civilization and the amazing city of Machu Pichu? The remains of Machu Pichu still exist high in the Andes mountains and are a reminder of the once thriving culture. However, no definitive answer exists on why the Incas fell and what brought an abrupt end to their existence.

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