8Niagara Falls, New York
Niagara Falls, straddling the border between the United States and Canada, is one of the most famous waterfalls in the world. The American Falls and Bridal Veil Falls on the U.S. side, along with the larger Horseshoe Falls in Canada, create a thunderous display of water plunging over the cliffs. Visitors can get up close to the falls on the Maid of the Mist boat tour, or view them from observation points along the shore. The power and grandeur of Niagara Falls are truly mesmerizing, making it one of the most visited natural wonders in the U.S.