Is there a 40-storey underground bunker?
On satellite images – easily findable via a quick Google search – Area 51 looks like any other military base, with crisscrossing runways and non-descript outbuildings. But one popular theory (see Joel Levy’s The Little Book Of Conspiracies) is that most of the real base is hidden from view – in a vast, 40-storey-deep underground bunker where the most classified projects are worked on. The subterranean infrastructure is reportedly linked by underground railway to other ‘black’ sites in Los Alamos, White Sands and Los Angeles. Some serious security measures supposedly protect the subterranean infrastructure (presumably from staff without the necessary clearance), including motion and scent sensors.