Area 51 Tours
You can get a guided tour of Area 51 (well, not the inside but all around it) through Adventure Photo Tours. The tour picks you up at the airport in Vegas, shows you the JANET Airlines airplanes that transport the Area 51 workers, then you’ll cruise up to Area 51 with stops along the way some alien petroglyphs and whatnot. Then you’ll hit the A’le Inn in Rachel, NV and stop at the Black Mailbox before going right up to the perimeter of Area 51 itself. $195 per person.
http://vegas.vacationchoices.com/blog/2011/12/05/step-into-the-weird-area-51-tour/