Aerial exploration of the arid tableland surrounding Peru’s Palpa valley has revealed a remarkable network of geometric and zoomorphic forms etched in the desert floor. Created by the Nazca, a pre-Incan civilization that flourished from about 200 BCE to about 600 CE, the Nazca Lines span about 200 sq mi (500 sq km). The glyphs are only recognizable as coherent figures from the air, but the Nazca never possessed the technology to view them from that vantage point. Why, then, did they create them? Discuss
Source: The Free Dictionary