Niagra Falls, US and Canada -
Approximately 13 million people visit Niagra Falls each year to watch 150,000 gallons of water per second flow over the falls.
Iguazu Falls, Argentina
This system consists of 275 falls along 1.67 miles of the Iguazu River. And the Devil's Throat area is taller than Niagra and twice as wide.
Victoria Falls, Zimbabwe and Zambia
It is the largest singular waterfall in the world at 354 feet high, with a flow of over 264,000 gallons per second! Described by the phrase "smoke that thunders," Victoria Falls is considered one of the seven natural wonders of the world.