(PCM) Stone Spheres of Isla de Caño, Costa Rica What: Over three hundred spheres of varying size (ranging from a few centimeters to 2 meters in diameter) scattered throughout the island. The largest weigh 30,000 pounds. Most are made of basalt (volcanic rock), but some are made of limestone or sandstone. They date back to… Read More
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(PCM) Stone Spheres of Isla de Caño, Costa Rica What: Over three hundred spheres of varying size (ranging from a few centimeters to 2 meters in diameter) scattered throughout the island. The largest weigh 30,000 pounds. Most are made of basalt (volcanic rock), but some are made of limestone or sandstone. They date back to… Read More
The post Stone Spheres of Costa Rica appeared first on Weird But True News.