Located 25 miles from Denver on a plot of land encompassing 53 square miles, sits the second largest- and the most bizarre airport in the world, the Denver Airport. For years this airport has been fertile ground for some pretty wild conspiracy theories that involve the Masons, alien lizard people, the end of the world, an underground bunker twice the size of Manhattan – and the rise of a New World Order. Now as mental as this all may sound, this conspiracy is actually scarily believable.