Costa Rica's mysterious stone spheres | The World from PRX
Mar 28, 2010 · Almost perfectly round stone spheres, such as this one at a school in Palmar Norte, dot the Southern Zone of Costa Rica. Ifigenia Quintanilla SAN JOSE, Costa Rica — A solitary, round sculpture that could pass as a simple work of modern art lends a sense of calm to this otherwise gritty, architecturally challenged capital city.