Since its grand opening in 1976, Valleyfair has held it down as Minnesota's preeminent amusement park (sorry, Nickelodeon Universe, and RIP, Camp Snoopy). Over the years, its 26 acres have swelled to 90 and now feature a little bit of everything, from old-school wooden roller coasters (the High Roller) to higher-tech shriekers (Steel Venom, which plunges 175 feet at 68 mph), not to mention 73 other rides of varying turbulence. For the tykes who don't quite meet the you-must-be-this-tall threshold, there's the KidWorks section. And when the mercury ascends to the appropriate level, fairgoers can get wet at the Soak City and Whitewater Country water parks, the latter alone boasting five waterslides and raft rides.