Na Costa Rica, ao longo das praias, montanhas e florestas, há várias esferas de 2.000 anos de antiguidade, que têm um diâmetro de 4 metros e um peso de 16 toneladas. Descubra de onde vêm estas pedras peculiares.
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FAIR USE NOTICE:
We are making this material available in our efforts to advance understanding of environmental, political, human rights, economic, democracy, scientific, and social justice issues, etc. We believe this constitutes a "fair use" of any such copyrighted material as provided for in section 107 of the US Copyright Law. In accordance with Title 17 U.S.C. Section 107, the material on this site is distributed without profit to those who have expressed a prior interest in receiving the included information for research and educational purpose.
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