The more Iguaçu Falls is revealed at every observation point in Brazil, the more you are in awe. The ribbons of water seem endless. Some are thin and delicate. Others are massive displays of churning white. They all glisten in the sunlight. The river swirls while thundering downstream. Floating plumes of mist are everywhere. And just when you think this scenery cannot be surpassed, a long arching rainbow appears. Sensational!