There are numerous mysteries right here on Earth, that lend credance to the validity of visiting aliens. Many structures right on our globe are long thought to have hidden secret pasts that we can only dream of.

Here are some little known facts about some ancient civilizations.

The Dogon Mythology

Sumerian knowledge of DNA?

The Mexican pyramids

THE TRUTH ABOUT THE GREAT PYRAMIDS

No matter how they try to explain the building of the great Pyramids, there is no way they can convince anyone that humans built these things, and if they did, it was not alone. The Egyptians did nothing but discover them and they know it, or they wouldn't have recently kicked a research team out of the country for their findings of the fact that the Pyramids were built in 10,500 B.C.. They had a couple feeble attempts to duplicate them but fell far short. While some consider the lesser pyramids early attempts, the fact that they have been dated much later doesn't seen to be noticed. Here are some facts that all of you should know about the Pyramids in Giza. There are many other mysteries surrounding the pyramids in Mexico, China and the temples in Indonesia as well.

If you take the perimeter of the pyramid, and divide it by two times the height, you get a number that is exactly equivalent to the Number pi (3.14159...) up to the fifteenth digit. The chances of this phenomenon happening by sheer chance is remarkably small,. like 1 in 3,000,000,000.Did the ancient Egyptians know what the number pi was? Not likely, seeing as it was a number not calculated accurately to the fourth digit, until the 6th century; and the pyramids calculate it to the fifteenth. And what about the fact that the Egyptians hadn't even invented the wheel yet, but the blocks that they had to carry to build the pyramids weighed about 2 tons each? (4,000lb.)? In fact, they used so much stone, that if you took all of the stone they used, and cut it into 1-foot square blocks, It would extend 2/3 of the way around the earth.

If you take the line of longitude that the Great Pyramid lies on, and the latitude, 31 degrees north, by 31 degrees west (the fact that they are the same number is not a coincidence) These are the two lines that cover the most combined land mass in the world. In fact, the Great Pyramid is the center of all of the landmass of the whole earth!

The sides of the base of the pyramid are some 757 feet long, it still forms an almost perfect square every angle in the base is exactly 90 degrees. In fact, the sides have a difference in length of something like two centimeters, which is an incredibly small amount. Consider that the World Trade Towers in New York City are as little as 9 inches off.

Truly the most interesting fact is that the pyramids, through recent discoveries, are dated as early as 10,500 BC. If you look at the constellation Orion, the belt looks very similar to the three pyramids of Giza. If you look at them from an Ariel view they are staggered exactly. If the location of the stars is traced back over thousands of years, the time at which the belt is exactly aligned with the pyramids is in fact 10,500 BC. A time when there were supposedly no civilized humans living on the earth. Another fact to support this is that if you consider the sphinx, a lion with a human head, and then look at the size of the body you can see that the body is perfectly proportioned for the head of a lion, not the human head, which looks tiny and silly sitting on top of the body. This is because the sphinx was actually built in 10,500 BC, around the same time as the pyramids, with its real head of a lion. Evidence to support this is that there are signs of water erosion all over the sphinx, and the last time that there was any water nearby, asides from the Nile is around 10,000 BC. Also, the constellation of Leo the lion (thus closely related to the sphinx), was in fact rising directly behind the sun in 10,500 BC.