Denver

Dino Giants Stampede Into Denver Museum's Phipps Gallery

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Published on March 23, 2026
Dino Giants Stampede Into Denver Museum's Phipps GallerySource: Google Street View

Denver just got a fresh invasion of giants, and they are taking over the third floor of the Denver Museum of Nature & Science. "The World’s Largest Dinosaurs" opened Friday in the Phipps Gallery, filling the space with life-sized sauropod bones, organs, and a towering 60-foot model of Mamenchisaurus. The hands-on exhibition digs into how long-necked sauropods managed to grow to such extreme sizes and will stick around through Monday, Sept. 7. Expect interactive puzzles, animated anatomy, and museum fossils laid out so visitors can literally see these behemoths from the inside out.

“The World’s Largest Dinosaurs invites visitors to explore one of the most fascinating questions in paleontology,” said Patrick O’Connor, director of Earth & Space Sciences at the museum. The show connects length, weight, and organ function, highlighting that sauropods stretched from about 15 to 150 feet long and averaged roughly 12 tons, and it delivers that science through full-scale reconstructions and hands-on displays, as reported by the Denver Gazette.

What You’ll See

Center stage is a 60-foot Mamenchisaurus, best known for a neck that alone stretches roughly 30 feet. Around it, the floor is packed with other showpieces: the massive head of an Argentinosaurus, displays of hatchlings and a 40-foot section of sauropod tail. Visitors will also find two shoulder-blade bones measuring about eight feet across and the very first dinosaur bone the museum ever collected. To top it off, the exhibition projects a beating sauropod heart onto the 60-foot model to demonstrate how circulation might have worked in such a huge animal; these highlights and the full run date are outlined in the museum's press materials, according to PR Newswire.

How the Science Is Framed

Organized by the American Museum of Natural History, the traveling exhibition breaks sauropod biology into clear modules: hearts, lungs, metabolism and neck mechanics. Visitors can size up how dinosaur systems stack against those of living animals. Exhibition materials from the AMNH describe how researchers combine modern physiology with fossil evidence to reconstruct internal systems and test ideas about how these giants managed to grow so large, according to the American Museum of Natural History.

Tickets and Timing

The World’s Largest Dinosaurs opened to the public on March 20, and entry requires an additional exhibition ticket for both members and general-admission visitors. Non-member advance tickets went on sale March 6 at 9 a.m., and DMNS lists the Phipps Gallery on the museum’s third floor as the home base for the show, per the Denver Museum of Nature & Science.

The exhibition leans into DMNS’s long-running role in Rocky Mountain paleontology while giving locals a chance to explore a major national traveling show. For anyone curious about how the biggest land animals on Earth actually worked, it offers a rare, tactile, and up-close look at life as a giant.

Denver-Science, Tech & Medicine