Iguazu Falls are waterfalls of the Iguazu River on the border of the Brazilian state of Paraná and the Argentinian province of Misiones. The falls divide the river into the upper and lower Iguazu. The Iguazu River rises near the city of Curitiba. It flows through Brazil for most of its course. Below its confluence with the San Antonio River, the Iguazu River forms the boundary between Argentina and Brazil.

Harrison Ford attends the 2025 Screen Actors Guild Awards at Shrine Auditorium and Expo Hall on February 23, 2025 in Los Angeles, California. (Photo by Taylor Hill/FilmMagic)

(L-R) Giselle, Ningning, Karina and Winter of South Korean girl group aespa attend the 2025 Billboard Women in Music at YouTube Theater on March 29, 2025 in Inglewood, California. (Photo by Amy Sussman/Getty Images)

Miguel Oliveira of Portugal and Prima Pramac Yamaha MotoGP crashing during the 2025 MotoGP Michelin Grand Prix of France at Circuit Bugatti on May 11, 2025 in Le Mans, France. (Photo by Jean Catuffe/Getty Images)

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“We've reached 40km.” – Participants run at the 40km mark of the 2025 Chosun Ilbo Chuncheon Marathon, held in Chuncheon, Gangwon Province, South Korea on the afternoon of the October 26, 2025. (Photo by Park Seong-won)