Horizon - Season 36 (1999)

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Following two passionate archaeologists, Giuseppe Orefici and Egle Barone-Visigalli, this documentary tries to solve the enigma of a little-known Pre-Columbian civilization: the Nasca.

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Hidden deep beneth the Earth's surface lie one of the most destructive and yet least under-stood natural phenomena in the World. Super Volcanoes. One of the largest Super volcanoes is in Yellowstone National Park in the USA.

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