NAZCA DESERT MYSTERY: NOVA

Widescreen. One of the world's greatest ancient enigmas, the Nazca lines are a dense network of criss-crossing lines, geometric shapes, and animal figures etched across 200 square miles of Peruvian desert. Now, archaeologists have discovered hundreds of long-hidden lines and figures, offering new clues to the origins and motivations behind the giant desert symbols. English SDH. 55 minutes.