The Nazca Lines
The Nazca Lines cover more than 190 square miles in the southern deserts of Peru. The mysterious shapes etched into the land rival football fields and predate the Incan Empire. The ‘Las Manos’ figure (above) is 2,000 years old. Little is know about why the Nazca people constructed such vast pieces of sand art, some believe they are extraterrestrial in nature, while others claim they may have carried and pointed to sources of water.