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International

Carrie Kahn
/
NPR
The Iguazú Falls span more than a mile across both countries. A rain-soaked October, which scientists link to the Super El Niño, has sent near-record volumes of water surging over the towering cliffs.
Traffic moves past an installation depicting butterlies forming the Iranian national flag in Tehran on October 21, 2026.
ATTA KENARE
/
AFP via Getty Images
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