16. Nazca Lines
If you take a flight across the Nazca desert in Peru, you’ll see a series of enormous geometrical lines dug out in various symmetrical shapes across the ground. If you put these end to end, the line almost runs 800 miles long! these are called the Nazca Lines and were drawn between 4th century BC and 10th century AD.
But what was the purpose of these ancient lines? Some say that these were part of a sacred ritual to please the rain gods to bring in much-needed rain on the desert, but no one knows for sure. These historic lines were preserved thanks to the desert’s naturally dry climate.