Iguazu Falls is a complex of 275 waterfalls on the Iguazu River, located on the border of Brazil (Paraná) and Argentina (Misiones province). The waterfalls are located on the border of the Argentine and Brazilian Iguazu national parks. Both parks were included in the UNESCO World Heritage List (in 1984 and 1986, respectively). In 2011, according to the results of the world competition, Iguazu Falls were recognized as one of the seven natural wonders of the world.