1. Nickelodeon Universe | Bloomington, MN
Everything's bigger in Bloomington, including America’s largest indoor theme park, the seven-acre Nickelodeon Universe in the Mall of America. The amusement park just celebrated 15 years of entertaining families. Here, you can enjoy 27 rides that range from the tot-friendly Blue’s Skidoo to the big-kids-only Avatar Airbender. Make sure there’s room on your camera roll for pictures—your kids will want to remember meeting their favorite cartoon characters, including Aang, Blue, Diego, and the Teenage Mutant Ninja Turtles.