Gina R., M1
Essentially a huge, urban playhouse, the City Museum is one of the most unique attractions in St. Louis. You can go down a 10-story slide, frolic in colorful ball pits, get lost in the depths of twisting caves, spin in a giant hamster wheel, and more. Originally a shoe factory and warehouse, the museum showcases its industrial history through impressive, artistic decorations created from repurposed machines and factory parts. For less than $15, people of all ages can find hours of activities and entertainment at this site!