13. Great Wolf Lodge
Location: Grand Mound, Wash.
Great Wolf Lodge has 11 locations around the U.S., but the location in Grand Mound has two special attractions worth shouting about. The first is Fort Mackenzie, a four-story tree-house/water fort. Aside from sounding like the most dangerous thing ever created, it seems fun. The other is the Howling Tornado, which is the world’s first totally enclosed multi-rider Tornado tube ride. And yes, that apparently is a legitimate distinction to make.