Since opening in 1995, Denver International Airport (DIA) has become a hub of conspiracy and paranormal lore. Beneath its runways are miles of tunnels and bunkers originally built for a baggage system, but many believe they conceal a secret government or alien facility. The airport is also infamous for its unsettling art: the apocalyptic murals of Leo Tanguma and the 32-foot “Blue Mustang” statue (nicknamed Blucifer), whose glowing red eyes and deadly accident during installation fuel its cursed reputation. Travelers report strange symbols in the terminal, rumors of Freemason involvement, and even UFO sightings over the airfield. DIA embraces the legend, but many consider it one of America’s strangest and most haunted airports.