Stone Spheres

"The stone spheres (or stone balls) of Costa Rica are an assortment of over three hundred petrospheres in Costa Rica, located on the Diquís Delta and on Isla del Caño. Locally, they are known as Las Bolas (literally The Balls). The spheres are commonly attributed to the extinct Diquís culture and are sometimes referred to as the Diquís Spheres. They are the best-known stone sculptures of the Isthmo-Colombian area. They are thought to have been placed in lines along the approach to the houses of chiefs, but their exact significance remains uncertain."

• Text from Wikipedia entry for "Stone spheres of Costa Rica" (accessed 11/15/2015)
• Image source

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Blog Posts and Articles

• "The Stone Spheres of Costa Rica" (Brian Dunning, 2/3/2015)
• "CNN International Website Asks If "Aliens or Atlantis" Created Costa Rican Stone Spheres" (Jason Colavito, 2/24/2015)
• "Stone Spheres of Costa Rica" (Frank Johnson, 2/21/2013)
• "The 10 Most Not-So-Puzzling Ancient Artifacts: Giant Stone Balls of Costa Rica" (ArchyFantasies, 9/12/2012)

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