Niagara Falls is a small group of large waterfalls in the Niagara River in eastern North America, on the border between the United States and Canada. Located approximately 236 meters above sea level, his fall is approximately 100 meters. Include three waterfalls: The "Canadian Falls (Ontario), the" American loupes "(New York) and the smaller ones, the" Veil Falls of Bride. " Although they do not have a great height, are very wide, and are the most voluminous of North America, for them to go through all the water in the Great Lakes. Since they were discovered by European settlers have become very popular, not only for its beauty but also for being a source of energy and a challenging project for environmental conservation. They are a tourist site shared by the cities of Niagara Falls (New York) and Niagara Falls (Ontario).