Iguazu Falls represents the world's largest waterfall system, straddling the Argentina-Brazil border on the Iguazu River. Comprising 275 distinct cataracts cascading over a 2.7-kilometer-wide escarpment, the falls drop dramatically with water flow reaching 11,000 cubic meters per second during peak season—surpassing Niagara Falls in volume. The Garganta del Diablo (Devil's Throat) creates a spectacular horseshoe configuration dropping 82 meters, generating thunderous roar and perpetual mist visible kilometers away. Surrounded by lush subtropical rainforest supporting jaguars, ocelots, and diverse biodiversity, Iguazu Falls was designated a UNESCO World Heritage Site and attracts approximately 2 million visitors annually as one of the world's most spectacular natural attractions.