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A small part of the mysteries of the past are stone balls. They were first made famous by Arthur Clarke, in Costa Rica. For many years, that country was synonymous with them, but over time they have been found all over the world, in many countries. Some are perfectly regular spheres, others are slightly flattened or elongated, and still others are damaged (due to natural forces, during transport, intentionally broken...). They are made of different rocks, from volcanic to sedimentary. They come in various sizes, and the largest ones reach up to several meters in diameter and weigh several tons. The closest to us - stone balls were found in Bosnia, where they attracted the attention of the discoverer of the Bosnian pyramids, Semir Osmanagić. Although several thousand stone balls have been discovered around the world, most are still shrouded in mystery, and the most controversial question is whether they are all of natural origin or were some made by human hands, for what purpose and when... ???? You can also follow us here TikTok ???? https://www.tiktok.com/@hrvatska_radi... Web ???? http://www.hrt.hr/ Facebook ???? / hrtnovimediji Instagram ???? / hrvatska_radiotelevizija Twitter ???? / hrtviesti HRTi is a multimedia service intended for those who want to watch and listen to HRT programs via the internet on their computers, smartphones and televisions ???? https://hrti.hrt.hr/home