The hot ticket at this beaux arts–style museum completed in 1913 is the Dinosaur Hall, whose more than 300 fossils include adult, juvenile, and baby skeletons of the fearsome Tyrannosaurus rex. The Discovery Center lets kids and curious grown-ups touch real animal pelts, and the Insect Zoo gets everyone up close and personal with the white-eyed assassin bug and other creepy crawlers. A massive hall displays dioramas of animals in their natural habitats. Also look for pre-Columbian artifacts and crafts from the South Pacific, as well as the informative “Collapse” exhibit, inspired by author Jared Diamond's research into why some societies succeed and others fail. Outdoors, the 3½-acre Nature Gardens shelter native plant and insect species and contain an expansive edible garden.