Secrecy breeds conspiracy and fanciful rumors, and no place on Earth today seems to be more secretive and more shrouded in mystery than Area 51. It's suspected to be home to specimen of alien life, a place to reverse-engineer extraterrestrial technology, or even a front for something a lot more secretive buried under the Nevada desert. But believe it or not, we actually do know a lot about Area 51 and what happens there, as well as many glimpses into its dark and unsettling history the government will neither confirm or deny.