Multiple choice One of the most popular adventure sites in Brazil is: Iguaza Falls. Negro Falls. Toro Negro Falls. Espiranza Takawa Falls. Reveal answer Fill a bubble to check yourself A Correct answer Explanation Iguazu Falls (spelled here as Iguaza Falls) is a world-famous waterfall system located on the border of Brazil and Argentina, making it one of the most popular adventure and tourist sites in the country.