Is there really a secret military base underneath Denver’s airport?

There are so many rumors swirling around about what’s under Colorado. Watch the 9NEWS special “Under Colorado“ for more underground secrets, Saturday, Oct. 22 at 6:30PM on Channel 20. Many residents have heard about a secret military city under Denver International Airport, even a government project on aliens down there. there have always been rumors and theories about what happens under DIA. Rumors such as: A secret military base where they do psychological testing Government project on aliens -- as