Genius Gone Insane
http://www.¯\(°_o)/¯.com
Nazca having a concentration of just about every mineral and resource on earth in one place, all the other mountains having peaks but that one large area is completely flat
Amen brother. To me this is the best evidence that there have been visitors of some sort. Also, I think there is a good chance these visitors are/were/will be human time travelers from the future.