Josh heads to the deserts of Peru to investigate the mystery of the giant, sprawling geoglyphs drawn in the desert sands of Peru. Evidence of new lines in the landscape may hold the key to the 2,000-year-old mystery and finally explain the purpose of the lines. Josh heads over to where he surveys the desert from above to get a glimpse at the gigantic figures. Josh aims to determine if the lines were used as a massive astronomical calendar, or as some fringe theorists believe: built with the help of aliens. Additionally, another theory suggests that the lines were used in drug-fueled rituals as ways of communicating with the gods.

Source: The Travel Channel