The Niagara Falls are voluminous waterfalls on the Niagara River, straddling the international border between the Canadian province of Ontario and the U.S. state of New York. The falls are 17 miles north-northwest of Buffalo, New York and 75 miles south-southeast of Toronto, Ontario, between the twin cities of Niagara Falls, Ontario, and Niagara Falls, New York.
Niagara Falls is composed of two major sections separated by Goat Island: Horseshoe Falls, the majority of which lies on the Canadian side of the border, and American Falls on the American side. The smaller Bridal Veil Falls are also located on the American side, separated from the main falls by Luna Island.
The Niagara Fall is the most powerful waterfall in North America. Niagara Falls is divided into the Horseshoe Falls and the American Falls. The Horseshoe Falls drop about 173 feet, the height of the American Falls varies between 70–100 feet because of the presence of giant boulders at its base. The larger Horseshoe Falls are about 2,600 feet wide, while the American Falls are 1,060 feet wide.
Source: en.wikipedia.org/wiki/Niagara_Falls - 04.06.2010
No picture is able to reflect the largeness and the momentum of the Niagara Falls.
Maybe such detail pictures evoke a clue or remind those, which had already seen this natural phenomenon directly.