Iguazu Falls, Argentina-Brazil Border, South America

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One of the great natural wonders of the world, the Iguaçu Falls (Portuguese: Cataratas do Iguaçu, Spanish: Cataratas del Iguazú, Tupi: Y Ûasu "big water") are situated near the border of Brazil, Paraguay, and Argentina. The area is on the UNESCO World Heritage List.

Access to the Falls is usually done through one of the three cities in the so-called tri-border between Brazil, Argentina and Paraguay.
The city on the Brazilian side is Foz do Iguaçu - big and reasonably safe by Brazilian standards. The town on the Argentine side is called Puerto Iguazu and is small and pretty. Although the falls are between Brazil and Argentina only, Ciudad del Este, the city on the Paraguayan side, is just across the bridge from Brazil. It's a hectic (but exciting) centre for contraband and cheap electronic goods, and some say it's not safe there.

The Iguazu Falls, Iguazú Falls, Iguassu Falls, or Iguaçu Falls (Spanish: Cataratas del Iguazú [kataˈɾatas ðel iɣwaˈsu]; Guarani: Chororo Yguasu [ɕoɾoɾo ɨɣʷasu]; Portuguese: Cataratas do Iguaçu [kataˈɾatɐʒ du iɡwaˈsu]) are waterfalls of the Iguazu River on the border of the Argentine province of Misiones and the Brazilian state of Paraná. They are the largest waterfalls system in the world.[2] The falls divide the river into the upper and lower Iguazu. The Iguazu River rises near the city of Curitiba. For most of its course, the river flows through Brazil; however, most of the falls are on the Argentine side. Below its confluence with the San Antonio River, the Iguazu River forms the boundary between Argentina and Brazil.