Area 51 is a U.S. military installation that is located 100 miles north of Las Vegas. It is considered to be one of the most mysterious places in the world since the U.S. government denied its existence until just 2013. Now, it is mostly known for its many UFO conspiracy theories. The area is mainly used by CIA and the U.S. Air Force as a testing territory because of its remote location. Despite it being a military installation, many people believe that it might be the place where scientists research a crashed alien spacecraft. Many conspiracy theory enthusiasts visit the nearby territory to Area 51, yet entrance is completely prohibited.