7 Mysterious Discoveries That Left Even Archaeologists Baffled

Costa Rica’s Stone Spheres

Still considered one of the world’s unsolved archaeological mysteries, nearly flawless spherical stones were first found in the Diquis Delta of Costa Rica during the 1930s. Hundreds more have been discovered all over the country. Ranging in size from a few centimeters to over 2 meters in diameter, the spheres sparked numerous myths and speculations. Scientists still don’t know for sure what the purpose of these mysterious polished orbs might be.