The Nazca Lines are a series of ancient designs in Peru, made in the ground by removing the reddish pebbles and uncovering the whitish/grayish ground beneath, The designs are simple and some are more complex of birds, fish, trees or flowers with the largest being over 200 metres across. The meanings are not clear but are likley to have a religious significance to them. They can been seen most clearly from above, although some of them can be seen from the foothills.
Jim Woodman, from this believed that the Nazca lines were made using a method of manned flight to see the figures from the air and he suggested that a hot air balloon was used. So he made a hot-air balloon using only materials and techniques that would have been available to the Nazca people at the time. The balloon apparently flew briefly! Most people have rejected his thoery as there is no real evidence- but we like the idea anyway and they are amazing designs!