Storybook fortress on a rock island ringed by a river canyon.
Canyon wall stencilled with hundreds of hands up to 9,000 years old — the oldest art in South America, and a UNESCO site.
The El Chepe train climbs 2,400 metres through 86 tunnels and 37 bridges across a canyon system deeper than the Grand Canyon.
Slot canyon on Navajo land near Page, Arizona, carved into swirling sandstone by flash floods.
See the steep dark cliffs and narrow river-carved gorge of Black Canyon of the Gunnison National Park.
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