A U. S. Military aircraft testing area near Rachel, Nevada. The area is part of the Nellis Air Force Range and the Nevada Test Site. Area 51 is also know as "Groom Lake" because of the Groom Dry Lake Bed. The airspace around Area 51 is known as "Dreamland".
Area 51 is said to be a center of UFO activity. Some speculate that Area 51 is where the U.S. Government tests UFOs that it has obtained. Visitors are prohibited from the area. However, some say that you can see UFO activity from certain locations on Highway 375. In particular, mile marker LN 29.5 is home to the "black mailbox" (now white), a Mecca for tourists. While you may or may not see UFOs if you go, you do have a good chance of seeing Air Force aircraft testing.