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A dive into the most popular, wildest conspiracies surrounding the Denver International Airport

Are they foolish rumors taken one step too far, or is there some truth to the conspiracies at the Denver International Airport? We walked around DIA and visited its underground tunnels to learn more about the most popular and bizarre theories about the airport.

· archived 5/21/2026, 4:57:05 PMscreenshotcached html
A dive into the most popular, wildest conspiracies surrounding the Denver International Airport
NewsLocal Actions Facebook Tweet Email A dive into the most popular, wildest conspiracies surrounding the Denver International Airport Friday marks airport's 25th birthday <img class="Image" alt="" src="https://cf.cdn.uplynk.com/ausw/slices/dfa/0e3a3b3bc3ae4d6eac785fb8a26bdb6b/dfa6e7ea77624a60beebcce545b9b919/poster_004582e8315340d394f0061f6db22e76.jpg" data-caption="Are they foolish rumors taken one step too far, or is there some truth to the conspiracies at the Denver International Airport? We walked around DIA and visited its underground tunnels to learn more about the most popular and bizarre theories about the airport." /> Prev Next Are they foolish rumors taken one step too far, or is there some truth to the conspiracies at the Denver International Airport? We walked around DIA and visited its underground tunnels to learn more about the most popular and bizarre theories about the airport. <img alt="" src="https://ewscripps.brightspotcdn.com/dims4/default/6eb47e8/2147483647/strip/true/crop/3840x3840+1041+0/resize/300x300!/quality/90/?url=http%3A%2F%2Fewscripps-brightspot.s3.amazonaws.com%2F45%2Ff4%2F9c228ba34e308a2a794308dad027%2Fstephanie-butzer.jpg" srcset="https://ewscripps.brightspotcdn.com/dims4/default/6eb47e8/2147483647/strip/true/crop/3840x3840+1041+0/resize/300x300!/quality/90/?url=http%3A%2F%2Fewscripps-brightspot.s3.amazonaws.com%2F45%2Ff4%2F9c228ba34e308a2a794308dad027%2Fstephanie-butzer.jpg 1x,https://ewscripps.brightspotcdn.com/dims4/default/532d8dd/2147483647/strip/true/crop/3840x3840+1041+0/resize/600x600!/quality/90/?url=http%3A%2F%2Fewscripps-brightspot.s3.amazonaws.com%2F45%2Ff4%2F9c228ba34e308a2a794308dad027%2Fstephanie-butzer.jpg 2x" width="300" height="300" > By: Stephanie Butzer Posted and last updated DENVER — Are they foolish rumors taken one step too far, or is there some truth to the conspiracies at the Denver International Airport?That depends on how far you’re willing to let your imagination run wild. For you, perhaps the truth is what you perceive as reality. Or maybe it’s just what you want to believe. Or maybe it’s basically anything that has yet to be disproved. When examined with even just a sliver of truth, the “proof” of these conspiracies seems pretty feeble and far-flung. But Alex Renteria, a spokeswoman with the airport, said it’s clear that isn’t stopping the hard-core conspiracy theorists. And that’s just fine by DIA, which is celebrating its 25th birthday Friday. “It’s not as exciting as everybody wants it to be, but I think that’s why we love it so much,” she said. “Let’s get excitement around our airport. And that’s OK if people think we’re weird and have the Illuminati and that aliens land their spaceships here. That’s fine with us. Keep thinking it. And we’ll keep trying to prove you wrong, but we’re not afraid to embrace those conspiracies.”Conspiracy: Bunkers beneath the airport are home to lizard people, aliens and the Illuminati One of the most well-known conspiracies revolving around the Denver airport is its underground tunnels and their purpose. And who, or what, lives there. Today, the tunnels are a flurry of activity. Surrounded in full by concrete, drivers pull baggage carts in all directions, ensuring the suitcases get to the planes before takeoff and to the baggage carousel in a timely manner. Thousands of people work in the tunnels every day, Renteria said. Travel all the way to the end and it becomes quiet. Just four solid walls lit along the sides. If you imagine an underground tunnel, it's about what you'd expect. "It’s not as spooky as people think, but we encourage people to keep believing," she said. Denver7 When it was first being constructed, the Denver airport was behind schedule. The public began wondering why the timeline had been extended and what was actually going on at the airport, she said. Somehow, she said, people jumped to the conclusion that there are bunkers under DIA and that was the reason construction was taking extra time. She said this simply isn't the case, though the tunnels are quite real.Renteria said they’ve heard rumors that the tunnels, which are there to transport luggage from aircraft to the carousels in the airport, extend well beyond the airport’s grounds. In fact, some believe the tunnels go all the way to Cheyenne Mountain, the home of NORAD. Renteria confirmed that the tunnels only extend out to the perimeter of the airport. In total, they're about 1.63 miles long. Denver Library Archive It only gets more bizarre when you learn about the conspiracies of who calls these tunnels home — lizard people. “That one is so wild to me,” Renteria said. “I don’t know. I’m wondering if someone fueled it. Somebody just decided that was the case and they were like, ‘Now there’s lizard people here.’”Denver7 previously reported that the lizard people are supposedly controlling the airport and can change forms as they work to rule the world. Renteria said DIA is taking this one in stride. “In our marketing campaign in the ...