Badlands National Park is 13 times larger than Kenosha, Wisconsin.
Area: 882 km2 calculated
Badlands National Park is a national park in southwestern South Dakota that protects 242,756 acres of sharply eroded buttes, pinnacles, and spires blended with the largest undisturbed mixed grass prairie in the United States. The park is managed by the National Park Service. Wikipedia
Area: 70 km2 calculated
Kenosha is a city in and the county seat of Kenosha County in U.S. state of Wisconsin. With a population of 100,150 as of November 2012, Kenosha is the fourth-largest city in Wisconsin. Wikipedia