About the Field Museum of Natural History:
For dinosaur fans, the centerpiece of the Field Museum of Natural History in Chicago is "Evolving Planet"--an exhibit that traces the evolution of life from the Cambrian period down to the present day. And as you might expect, the centerpiece of "Evolving Planet" is the Hall of Dinosaurs, which boasts such specimens as a juvenile Rapetosaurus and a rare Cryolophosaurus, the only dinosaur known to have lived in Antarctica. After you're done with the dinos, a 40-foot-long aquarium harbors reproductions of ancient aquatic reptiles, such as Mosasaurus.
By far the most famous dinosaur at the Field Museum of Natural History is Tyrannosaurus Sue--the near-complete, full-sized T. Rex discovered by roving paleontologist Sue Hendrickson in 1990 in South Dakota. The Field Museum wound up acquiring Tyrannosaurus Sue at auction (for $8 million) after a dispute arose between Hendrickson and the owners of the property on which she made her spectacular find.