Secret ancient Andean passageways may have been used in rituals involving psychedelics - Livescience.com

Hidden passageways used by ancient Andean culture opened for the first time in 3,000 years.

Archaeologists have revealed a complex of hidden passageways and galleries deep inside the ancient Chavín de Huántar temple complex in the Peruvian Andes. The researchers think the network of chamber… [+6133 chars]

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