Places with a changing table in Pittsburgh

A children's museum with Daniel Tiger's Neighborhood and Donkey Hodie exhibits, and a huge glass bird sculpture toddlers love at the entrance.

Floors of hands-on science, a giant model railroad, a submarine to tour outside and a Little Learner Clubhouse for kids six and under.

A zoo and aquarium with a carousel, a train, up-close animal encounters and two playgrounds, one sized for younger kids.