Iguazu Falls are located on the of the same name river on the border of Brazil with Argentina. Iguazu are considered both the most beautiful waterfall in the world, but also the largest – decompose almost three kilometers wide and consist of around 275 individual parts. Waterfalls are worth visiting both the Argentinian and Brazilian sides. From brazil side, you will see Iguazu more panoramically. From the Argentine side you will stay more closer to waterfall and you can try more hiking trails.