People who have never been said that Iguazu is the third largest waterfall in the world, and people who have been here say that it is the first. I took my mother (mother just happened to have been to Niagara Falls and Victoria Falls) and my mother said that this is the most shocking! South America's unique water system resources cast the Iguazu Falls spectacular! Definitely worth a look! From Brazil and Argentina, it will be more wonderful!