The Pre-Columbian Stone Spheres of Costa Rica • Neperos
In 1930, the United Fruit Company was busy planting numerous banana trees in in Costa Rica, on Isla del Caño, when workers found a series of enigmatic perfect stone spheres, all of different sizes, each with a weigh up to 16 tons and a diameter of up-to two meters.. The petrospheres were made of solid-granodiorite, an intrusive igneous rock of the granite family very hard to work.
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