Foz de Iguacu, Brazil, October 2004. The waterfalls of iguazu are among the biggest and certainly the most beautiful falls in the world.  The waterfall system consists of 275 falls along 2.7 kilometres (1.67 miles) of the Iguazu River. Some of the individual falls are up to 82 metres (269 feet) in height, though the majority are about 64 metres (210 feet). The Garganta del Diablo or Devil's Throat (Garganta do Diabo in Portuguese), a U-shaped 150-metre-wide and 700-metre-long (490 by 2300 feet) cliff, is the most impressive of all, and marks the border between Argentina and Brazil. Most of the falls are within Argentine territory.  Photo by Frits Meyst/Adventure4ever.com
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