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There are no aliens at America's most famous top-secret military base, but what is there is just as interesting.

Area 51 is a remote, heavily guarded area in the Nevada desert. Wild theories abound about what goes on in Area 51, including…

Area 51, secret U.S. Air Force military installation located at Groom Lake in southern Nevada. It is administered by Edwards Air Force Base in southern California. The installation has been the focus of numerous conspiracies involving extraterrestrial life, though its only confirmed use is as a flight testing facility.

As the internet jokingly threatens to storm Area 51, here's everything to know about the remote desert's site mysterious history.