One of the most popular UFO sightings of all time. July 24, 2000, Twin Towers, New York City. This 19 second clip was purportedly taken by a couple on a helicopter tour of New York City. A UFO can clearly be seen peeking out behind one of the towers. It suddenly makes a dramatic move, and then speeds right past the helicopter. (This video has been exposed as a hoax! Many of you still like to view and download it.)