If you wondered about the amazing waterfall scenes in the movie “Black Panther,” here’s the landscape that inspired them. Iguaçu Falls, along the border of Brazil and Argentina, is a spectacle you have to see to believe. No wonder it attracted a movie director’s attention. Dozens of major cataracts and hundreds of tributaries plunge into a dramatic amphitheater formed by the Paraná River, which has the second largest drainage system in South America after the Amazon. Follow me @caesaria and @antonicaesaria for more views of Iguacu and other wonders of the world.