Introduction to Iguazu Falls: Iguazu Falls is the widest waterfall in the world, located on the border between Argentina and Brazil. The waterfall is a horseshoe-shaped waterfall, 82 meters high and 4 kilometers wide. In 1984, it was listed as a World Natural Heritage by UNESCO. The biggest difference is that there are many viewing points, and you can see different scenes from different locations, different directions, and different heights. The top of the canyon is the center of the waterfall, with the largest and most powerful flow of water, known as the "Devil's Throat."