Ancient Aliens

Throughout time people of past cultures and times have looked up at the sky and wondered if there is more and are there other people out there. Right now UFOs and extraterrestrials are a hot topic withe the American public, but there is the possibility that aliens have visited our "blue ball" in the past before. Their whole idea behind the ancient alien phenomenon is that in the past we were visited by aliens and they helped shape our civilizations that they are today. One of the things people look at is the ancient structures built by the people on our planet. The pyramids in Giza, Egypt are very massive and very impressive, but maybe to impressive. Records have said that the Great pyramid of Giza was built in 21 years. That's impossible by today's standards if you do the logistics of the building that one pyramid. If you were trying to build a pyramid like that you would have to set one block every 9 seconds. These stones are 1-20 tons each. The pyramid is so perfect that it is impossible by today's standards. The Great Pyramid of Giza is two centimeters off from being a perfect square. Also the Pyramids of Giza line up with Orion's Belt. It's very interesting that they would know how to do this with the technology that they had, may be they had help form people from out of this world. Another thing that points to the existence of ancient aliens is Adolf Hitler when he was in power during the 30's and 40's. Many believed that Hitler had help from Aliens because much of his technology was way ahead of its time. What's interesting is that the US after the war brought over German scientists and they helped build the hydrogen bomb for in what became known has Project Paperclip. Also one of Hitler's top ranking scientists said that they received help from other than this world. Many of the early civilizations around the planet believe that their gods came from space and there are written accounts of this too. A specific civilization in South America (one that I cannot name) said that their god came from a specific star. This is quite amazing because this star was not discovered until modern astrology came along too. the Nazca Lines pretty impressive because they can only be seen from an aircraft, so how could the Nazca people draw them or make them without seeing them. They range from a spider to a monkey to what appears to be a spaceman. There is also the Nazca plains which are completely flat and some believe that it could have been a landing strip for space craft. One theory that mainstream scientists are just throwing away, but the Ancient Alien theorists are still trying to keep up with is that ancient aliens had a hand in the death of the Dinosaurs. I know its sounds crazy, but there is some proof to the theory. A Tyrannosaurus rex skeleton was found in Montana with levels of radiation that are quite close to the one in Hiroshima and Nagasaki. The misconception with the death of dinosaurs is that they died all at once is wrong. Many of them stayed around for another two million years. Some civilizations have images of dinosaurs on their monuments which is interesting because many of them had never heard of them before. Another reason for the death of the dinosaurs could be that the aliens sent an asteroid to Earth to kill them off so the human could be fit for the humans. For me personally these theories are not too crazy, but for the others those are two far-fetched, but who knows may be many of us are all wrong.