Kalahari Resort in Wisconsin Dells, Wisconsin's largest indoor waterpark, has some ambitious plans in the works.

Kalahari Resorts is undertaking an $85 million expansion, adding a 75,000-square-foot indoor waterpark.

The world's longest sky pool built on the roof of a 250-room resort. Treyam is being billed as an 'elevated haven' - a luxury complex, stretching over a desert lagoon, with a nearly half-kilometer ...