Tourists stand on a walkway to observe the Iguacu waterfalls in southern Brazilian city Foz do Iguacu...
Tourists stand on a walkway extending from the Brazilian bank of the Iguacu River to observe the part of the Iguacu waterfalls in southern Brazilian city Foz do Iguacu, January 6, 2006. Walkways over the Iguacu Falls are one of Latin America's most spectacular tourist attractions. REUTERS/Miro Kuzmanovic