The falls are powered by the tiny Niagara River, only 30 miles long. They were formed about 10,000 years ago during the Ice Age. As glaciers receded the falls were formed along with the Great Lakes.
The Canadian side, Horseshoe Falls is 173 feet high, higher than the American side's American Falls by roughly 73 feet. The two main falls are just over a 3,400 feet away from each other.
Not only are the falls a source of raw natural power they currently are the source of hydroelectric stations on both sides of the border.
Niagara Falls have been written about since the first time people viewed them. Since 1901 some of the stories have also been about people who have attempted to brave going over the falls in barrels and the like. Most of those who have tried to do a free fall over the falls have not lived to tell the tale. The venture is illegal on both sides of the border but that hasn't stopped about 2 dozen fool-hardly from the adventure. Sadly, some who wish to end their own life also have used the falls to achieve their death.
The Canadian side of Niagara Falls is a tourist town with casinos and attractions for the entire family.