Everyone knows that humans have been flying for only a few hundred years. But is it possible that ancient civillizations also had the abillity and technology to fly? In the Nazcan Desert in southern Peru, there are hundreds of lines which an ancient culture drew in the dust. On the ground, they just look like straight lines. But when you see them from the air, you understant exactly what they are. They are incredible and enormous pictures. The pictures include animals, birds and symbols.
One bizarre theory, which most mainstream scientists disagree with, is that the people who made the lines thousands and thousands of years ago flew above the lines in ballons. It seems incredible, but a few people do belive it's possible.