The Giant Stone Spheres (or Stone Balls) of Costa Rica are an assortment of over 300 stone balls located on the Diquís Delta and on Isla del Caño. These objects are monolithic sculptures made by human hands and one of the strangest mysteries in archaeology. Most of the spheres were created from gabbro, an acid-resistant igneous rock, shell-rich limestone and sandstone. They vary in sizes from a few cm to over 2 metres in diameter. The spheres are commonly attributed to the extinct Diquís culture. In June 2014, the Precolumbian Chiefdom Settlements with Stone Spheres of the Diquís was added to the UNESCO list of World Heritage Sites.
Giant Stone Spheres
