Wisconsin Dells is both the name of a town and the name of the area that comprises perhaps the biggest tourism zone in Wisconsin.
The Wisconsin Dells is a name given to the area that encompasses a The Dells is a 5-mile gorge on the Wisconsin River featuring rock formations and fantastic natural beauty.
The town bearing the name Wisconsin Dells takes advantage of this natural beauty, and adds some major family-friendly tourist destinations to go with it. You can take a tour on the Wisconsin Ducks, to see both the land and water scenery of the area. Juxtapose that experience with a day at Noah's Ark, a massive water park that claims to be the world's largest. Noah's Ark is hardly the only water park in the area, as indoor water parks, outdoor water parks, miniature golf courses, 18-hole golf courses, go-kart tracks, and countless other tourist attractions can keep a family entertained for days.
Also just down the road for the gambler in you is the Ho-Chunk Casino, a massive hotel and casino complex on lands belonging to the Ho-Chunk nation.