Move over Iguazú, Niagara and Victoria Falls! Watching 1140 metric tons of water shooting over a 250m cliff (the world's highest single-drop falls) in the middle of an ancient jungle alongside just a smattering of fellow tourists is truly a once-in-a-lifetime experience. As well as the stunning falls, the park is home to a tiny population of Amerindians and the incredible biodiversity of the Guiana Shield.