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Amazon Rainforest Geoglyphs
Studying the open landscape of the Amazon rainforests, scientists noticed numerous drawings carved into the ground – geoglyphs. Experts have discovered 450 geoglyphs in northern Brazil and Bolivia. The oldest geoglyphs are between 3,000 and 3,500 years old. The main theory states that these constructions were made for common meetings, discussions, and rituals.
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