Dinosaurs Unearthed opens to the public at Union Station on May 1. The Dinosaurs Unearthed exhibit opens at Union Station on May 1. Judging by this early look, it's the kind of thing we would've loved when we were kids. Then again, what age group doesn't yearn to embrace the Triassic period? Visitors will tour interactive dinosaur exhibits featuring 24 full-sized
animatronic dinosaurs, a paleontological dig site, and a 3-D film. Click on the dino for a sneak peek.