Mysterious airport tunnels to open beneath hub long tied to conspiracy theories

Denver International Airport will open sections of its underground baggage tunnels as pedestrian walkways connecting concourses A, B, and C. The project, part of the airport’s 'Vision 100' expansion plan, aims to improve passenger movement and is set to begin construction in 2027 with a cost range of $300 million to $700 million. The tunnels have long been associated with conspiracy theories involving secret bunkers and 'lizard people.'