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This is a natural wonder: a colossal system of waterfalls where the Iguazú River hurls itself over a jungle-cloaked basalt escarpment in a thundering horseshoe of nearly 275 cascades, culminating in the Garganta del Diablo — the Devil’s Throat — where the river vanishes into a churning abyss of spray and rainbows.

Straddling the border of Argentina and Brazil within Misiones province, the falls unfold across a UNESCO-listed subtropical rainforest alive with toucans, coatis, and butterflies. Elevated metal walkways lead visitors across the river’s upper reaches to stand at the very lip of the gorge, enveloped in a perpetual mist that catches the equatorial light in shifting arcs of color.

From above, an aerial panorama reveals the sheer scale of this UNESCO World Heritage site: a fractured curtain of white water set against endless green canopy, one of the most staggering convergences of geology, hydrology, and wilderness on Earth.