The Nazca Lines are found in the desert near the town of Nazca in Peru. They are huge geoglyphs, the largest of which are nearly 270 meters (890 ft) long, covering an area nearly 500 square kilometers (193 square miles). Due to the dry desert conditions, these lines have been preserved until now from the time they were built as much as 2,000 years ago, presumably by people of the local Nasca culture.
There are several hundred Nazca line figures, some geometric shapes, others appearing as representations of animals and other creatures. Their design is revealed from the air. Naturally, this led to speculation as to whether an ancient culture who had no ability to fly could have built them, and why.