Where Is Area 51?

You'll find it on a map—but you'll never get anywhere near this top secret military base. What exactly is going on there?

Is Area 51 a top secret military base that lies in the middle of the barren Nevada desert? Or could it actually be a facility for examining aliens and their spaceships? People can't drive anywhere close to it; the US government rarely acknowledges its existence; and until recently, the airspace overhead was restricted! Conspiracy theories abound about what goes on at Area...