These natural destinations across the United States have everything it takes to belong to the second group. The roar of the water is the first thing you notice upon arriving at Niagara Falls State Park. Located in western New York along the Canadian border, this state park provides access to the iconic Niagara Falls. Alaska and Arizona: Two Completely Different WorldsFew places illustrate the diversity of the United States better than Brooks Range in Alaska and Antelope Canyon in Arizona. Kentucky and the Magic of the MoonbowCumberland Falls State Resort Park is home to one of the best-known waterfalls in the eastern United States, where the Cumberland River drops about 68 feet.