civilizations

One of the strangest mysteries in archaeology are the huge spherical stones of Costa Rica. In the 1930s, banana plantations started here, and workers clearing the forests found over 300 perfectly round stones that range from a few inches to over 8 feet in diameter. The large ones weigh many tons. They are made of solid granite. No one knows how they were cut and polished to such a high luster. There are no Pre-Columbian monuments or ancient cities in Costa Rica, yet someone had to have been there to make these strange spheres. And if they were capable of doing this, why didn’t they create buildings and pyramids, like the Aztecs and Mayans?
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