Niagara Falls is the collective, name of three big waterfalls on the Niagara River in eastern North America, on the border between the United States and Canada. The three waterfalls are: the Horseshoe Falls, sometimes called the Canadian Falls, the American Falls, and the smaller Bridal Veil Falls. The American Falls and the Horseshoe Falls are separated with Goat Island, and the Bridal Veil Falls separated from the other waterfalls with Luna Island. Niagara falls is very well known for both its beauty and hydroelectric power. It has been a tourist attraction, commercial site and hydroelectricity source since the 19th century.