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Amazing Pre-Inca Megalithic Aspects of Machu Picchu | Brian Foerster

Full lecture, Brian Foerster presents his exploration of Machu Pichu in Puru.
Conversation

Plasticine Stones of Sacsayhuaman | N. Berdnikov, PhD

In 2012 the Ministry of Culture in Peru requested the involvement of Russian specialists in geology to help to identify the source of collapsing megalithic blocks in the fortress of Sacsayhuaman.
Documentary