Dinosaur eggs, meteorites, signs of an ancient civilisation: what are these giant balls?
The Economist - A giant stone ball has been discovered in a forest near the village of Podubravlje, Bosnia and Herzegovina on May 11th 2017. Archaeologists are still speculating on whether it
Objects of Wonder: Costa Rica's Stone Spheres - JSTOR Daily
Giant Stone Balls | Travel With Jan
Prehistoric Stone Balls--a Mystery | Natural History Magazine
These giant stone spheres are out of this world – but not literally | Discoveries | Earth Touch News
The Mysterious Stone Spheres - The World by Siege
Who Made the Giant Stone Spheres of Costa Rica? | Ancient Origins
Hundreds of giant stone spheres have been found all over the world, mostly Costa Rica, but also Bosnia, New Zealand. Many but not all are said to be made by people. :
OTIS (Odd Things I've Seen): Great Balls of Stone: Diquis Spheres
Landscape Impact: Substantial Stone Spheres Of Bold & Enchanting Delight | Mysterious places on earth, Ancient underground city, Natural wonders
Is Bosnia Massive Stone Ball Discovery Proof Of Lost European Advanced Civilization? The Bosnia Stone Ball weighs 30 tons and is partly iron. It may be the oldest human-made stone sphere, proving
The Stone Spheres of Costa Rica – Burials & Beyond
Giant Stone Spheres of Zavidovici, Bosnia | Ancient mysteries, Stone, Out of place artifacts
Vandalism in BiH: Why was the largest Stone Ball in the World damaged? - Sarajevo Times
The Mysterious Stone Spheres of Costa Rica
Archaeologist sees Bosnia stone sphere as the most massive in Europe
That Massive Stone Sphere In Bosnia Is Probably Not From A Lost Civilization
That Massive Stone Sphere In Bosnia Is Probably Not From A Lost Civilization
A visitor examines one of the giant stone spheres or balls made by prehistoric Indians in Costa Rica Stock Photo - Alamy
