Like most places, Colorado has its fair share of conspiracy theories. One of the most notorious of all, however, may just be the theories revolving around our very own Denver International Airport. Since it first opened in 1995 (and replaced the old Stapleton Airport), there have been many theories surrounding what is now the country’s largest airport, including speculation of secret military bases, cities, and other seemingly far-fetched stories. I will be the first to admit that I have never bought into these theories, so you can imagine my surprise when I heard that the airport is indeed home to a series of underground tunnels.

Thanks to this special segment on 9News, we can get a firsthand look at DIA’s underground tunnel system. Let’s check it out:

What do you think: Is there more to these tunnels than just transporting luggage and passengers? Let us know your thoughts in the comments.

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