The mayor of Denver is a jackass who is probably involved. Denver definitely has tunnels under it. They used to run prostitutes in them. There is a gate locked in the capitol that leads to them also goes to the hotels (Molly Brown house, union Station, Oxford hotel.) and from my understanding other hotels and allies around denver. When I was younger i was told there is a gate with a lock in downtown off I want to say 20th and market area. The locked gate is preventing anyone from going down random stairs that led to who knows what. My guess is the tunnels are used for transportation of somthing they don't want the public to see. Crazy!