Denver International Airport
There are several conspiracy theories relating to the airport's design and construction. Murals painted in the baggage claim area have been claimed to contain themes referring to future military oppression and a one-world government. However, the artist, Leo Tanguma, said the murals, entitled "In Peace and Harmony With Nature" and "The Children of the World Dream of Peace," depict man-made environmental destruction and genocide along with humanity coming together to heal nature and live in peace.
In the mid-1990s, Philip Schneider gave lectures about highly secretive government information concerning "deep underground military bases" that were constructed by the United States government, and said that one of these bases exists underneath the Denver International Airport. Author Alex Christopher claimed to have worked in the tunnels under the airport, and described what appeared to be vast holding areas for prisoners, strange nausea-inducing electromagnetic forces, and caverns big enough to drive trucks through, presumably to be filled with helpless political prisoners. This theory has been challenged, since photos have revealed that these tunnels are used for ransportation of baggage by way of conveyor belts.
Conspiracists have pointed to unusual words cut into the floor as being Satanic, Masonic, or just some impenetrable secret code of the New World Order: Cochetopa, Sisnaajini, and the baffling Dzit Dit Gaii. These words are actually Navajo terms for geographical sites in Colorado. "Braaksma" and "Villarreal" are actually the names of Carolyn Braaksma and Mark Villarreal, artists who worked on the airport’s sculptures and paintings.
There is a dedication marker in the airport inscribed with the square and compasses of the Freemasons, along with a listing of the two Grand Lodges of Freemasonry in Colorado. It is mounted over a time capsule that was sealed during the dedication of the airport. The Freemasons participated in laying this “capstone” (the last, finishing stone) of the airport project. The capstone also is inscribed with a line that simply states "New World Airport Commission", which is purportedly a non-existent organization. The blog, DIA Conspiracy Files, follows the various theories surrounding the airport. Some also claim there is a city under the airport to protect the rich and government officials from the possible events of 2012. This theory was featured on a Conspiracy Theory show with former Minnesota Governor Jesse Ventura on TruTV.