Rainbow Over Iguazu Falls October 2, 2013 by Photographer Ravi 0 Rainbow over Iguazu Falls Taller than Niagara Falls, twice as wide with 275 cascades spread in a horseshoe shape over nearly two miles of the Iguazu River, Iguazú Falls are the result of a volcanic eruption which left yet another large crack in the earth. Like this:Like Loading...