@Allenmaher, no need to be insulting. Also I don't consider a link to a Wiki as proof anything. Modern engineers admit they coulnt not do a lot of that work today that was done 15,000 years ago, but you go on thinking you have all the answers and trying to talk down to anyone that doesn't agree with your opinion.
BTW dude, nobody suggest people didn't build them. What people are suggesting is they may have had help. It's funny how you want to tell me to educate myself but you cant even seem to grasp what is being said here.
Yes dude its a mesa surrounded by huge mountain tops. Its completely level with no excuse like erosion to justify it. If it was something natural the soil from it would still be present in the area. It isn't. You are arguing against things you obviously haven't taken the time to look into or just found the first excuse you needed to justify your stance without actually looking at all the evidence.
I would suggest you hit a library, learn what ancient alien theory actually is, also look into modern construction techniques and how a lot of the stuff they did, isn't even possible today with computers.
What about the aerodynamic pieces they have found scattered around the world depicting aircraft and those designs actually work thousands of years before the wright brothers flew? How did they come up with the battery thousands of years before anyone else? I am sorry the whole slave labor works for some but not everything. Humans building it isn't the issue. Its how the got access to tools beyond their time and an understanding of construction we still cannot replicate today?







