Iguazú Falls is one of those visceral awe-inspiring experiences that everyone should experience once in their lifetime. The earth’s largest waterfall (closely contested with Victoria) has a wingspan of nearly three kilometers (1.8 miles) of pummeling cascades, which are stitched together on the Brazil/Argentina border. It is ringed by luscious subtropical rainforests teeming with flitting colorful butterflies, melodious birds and…