niagara falls, n.All

There are about 500 waterfalls in the world that are taller than Niagara Falls.

Niagara Falls was first crossed by tightrope in 1859.

Niagara Falls is beautiful for thirty seconds.

Niagara Falls froze over completely once --- in the winter of 1932

Niagara Falls is the bride's second great disappointment.

Niagara Falls is wonderful, but the wonder would be greater if the water did not fall.

Niagara Falls is a vast unnecessary amount of water going the wrong way and then falling over unnecessary rocks.

Niagara Falls is water on the rocks.