Niagara Falls is famous for its beauty and grandeur. It is one of the most visited tourist attractions in the world, with over 30 million visitors each year. It is also renowned for its powerful flow of water, with over 600,000 gallons of water flowing over the falls every second. Niagara Falls is also historically significant, having been a major site of hydroelectric power generation in the late 19th and early 20th centuries.