The world we live in is full of mysteries and man has been searching answers for them from time immemorial. However, no matter how advanced science has become, there are still many mysteries that cannot be unravelled by science. They continue to baffle us. The famous Nazca lines of Peru, which are associated with the Incan civilization by some scientists, have become a great puzzle; no one has yet come up with an acceptable theory as to why the Nazca Indians who lived in this area between 300 BC and AD 800, have drawn them.