DIA's Doomsday Murals: Denver Airport's Strangest Conspiracy Theory
Inside the real story behind Denver International Airport's controversial murals—the artwork that launched a thousand New World Order theories.
A Gateway Painted with Ghosts
Millions of travelers pass beneath Leo Tanguma’s murals at Denver International Airport every year, most without a second glance. But for those who stop and look up, the imagery is startling: a towering military figure in a gas mask, sword raised over a pile of dead animals and slain children; a young girl lying in a glass coffin, surrounded by mourners of every nationality; children of the world laying down their guns and gas masks in a wooden crate. It is not the kind of artwork you expect to find in a baggage claim.
Since DIA opened in 1995, these two murals—In Peace and Harmony with Nature and The Children of the World Dream of Peace—have become the visual centerpiece of one of America’s most enduring pieces of airport folklore. Ask anyone who has fallen down an internet rabbit hole about “what’s really under DIA,” and eventually the conversation turns to these paintings. But the real story of the murals, and the story the internet built around them, are two very different things.
The Artist Behind the Panic
Leo Tanguma is a real, well-documented Chicano muralist, born in Texas and known for large-scale public works addressing labor struggles, war, and social justice, including major murals in Houston. He was commissioned to create the DIA pieces as part of the airport’s public art program in the early 1990s, and the murals were installed in 1994, ahead of the airport’s delayed opening.
Tanguma has spoken publicly on multiple occasions—in interviews reported by the Denver Post, 5280 Magazine, and Smithsonian.com over the years—about what the murals actually depict and why. According to those interviews, his intent was explicitly anti-war and environmentalist: a visual narrative in which humanity destroys itself and the natural world through war and violence, only to find a path toward peace and reconciliation on the other side. The militarized figure with the sword represents the horror and destruction of armed conflict, not a specific ideology or organization. The children laying down weapons and gas masks symbolize disarmament and hope for future generations. The mourned girl in the glass case, per Tanguma’s own explanation, ties into grief and the cost of war—not, as later theories would claim, a coded reference to a specific catastrophic event.
Tanguma has also noted that the murals were meant to be part of a larger series—additional panels were originally planned to complete the narrative arc from destruction to peace, though funding and controversy affected which pieces were ultimately installed and displayed in full.
How Public Art Became a Conspiracy Magnet
The murals might have remained a curious but little-discussed piece of civic art if not for the broader mythology that grew up around DIA itself in the years after it opened. The airport’s unusual construction history—it was famously over budget and delayed for years, built far from the city on the high plains, with a baggage system that failed spectacularly—primed the public imagination for something stranger. Add in persistent rumors about tunnels beneath the terminal, dedication stones bearing Masonic symbols, and the airport’s brooding blue mustang sculpture, and DIA became fertile ground for speculation long before the murals were widely photographed and shared online.
By the late 1990s and into the 2000s, as message boards and early conspiracy forums proliferated, the murals were pulled into this larger narrative. Their apocalyptic tone—dead children, a militarized figure, a girl in a coffin—was reinterpreted not as anti-war allegory but as a hidden message: evidence of a New World Order elite preparing for, or even threatening, global depopulation. Some theories claimed the murals were a warning left behind by the same shadowy figures supposedly building bunkers beneath the airport. Others tied the imagery to Nazi symbolism, Illuminati iconography, or predictions of environmental collapse engineered by global elites.
None of these interpretations have any documented basis in the murals’ commissioning records, artist statements, or the public art review process DIA used to select the work. What they do have is staying power—the murals remain one of the most searched and speculated-upon pieces of public art in the country, decades after their installation.
The Artist’s Response
Tanguma has not stayed silent on the theories attached to his work. In interviews over the years, he has pushed back directly against the New World Order and depopulation readings, expressing frustration that a piece meant to advocate for peace and environmental stewardship was recast as something sinister. His statements, as reported by outlets covering the controversy, consistently frame the murals as a message of hope emerging from destruction—not a prophecy or a threat.
That disconnect—between an artist’s well-documented, on-the-record intent and the folklore that grew independently of it—is really the heart of this story. It’s a useful case study in how urban legends form: take ambiguous, emotionally charged imagery, remove it from its original context and artist statement, place it somewhere already primed for suspicion (an airport already dogged by tunnel rumors and construction scandals), and let the internet do the rest.
Why the Murals Still Haunt Us
Colorado has no shortage of places that draw paranormal and conspiracy attention—from reputed Denver hauntings covered by local outlets to the so-called “Bermuda Triangle of the West” folklore tied to unexplained sightings across the state’s more remote corners. DIA’s murals occupy a different category entirely: they’re not a haunted building or a strange light in the sky, but a piece of public art whose ambiguity and scale practically invite projection.
Part of what keeps the legend alive is that the murals are genuinely unsettling to look at, regardless of intent. Tanguma didn’t paint something gentle or reassuring—he painted grief, war, and loss, rendered at a scale that towers over travelers rushing to their gates. That rawness, stripped of context, is easy to misread as menace rather than mourning.
The Real Mystery
The documented facts are clear: Leo Tanguma is a known, living artist with a public body of work and an on-record explanation for every element travelers find unsettling. The murals were the product of a standard public art commission, not a secret manifesto. The conspiracy theories that grew up around them say less about DIA and more about how quickly ambiguous imagery, combined with a receptive audience already primed by other airport rumors, can calcify into legend.
The next time you find yourself in DIA’s Jeppesen Terminal, staring up at the girl in the glass case or the sword-wielding figure looming over the dead, it’s worth remembering what the artist himself has said: this was always meant to be a story about surviving war and choosing peace. Whether that message gets through—or gets swallowed by forty years of internet folklore—may be the strangest part of the whole story.