Carved by six rivers in the Sierra Madre Occidental, Copper Canyon sprawls across a staggering 25,000 square miles. Named for its copper-green hue, this natural marvel is deeper than its American cousin and spans an area large enough to fit the entire state of Rhode Island.

It’s home to the Rarámuri people who boast a reputation as the best long distance runners in the world, many of whom continue to inhabit ancient cave and cliff dwellings reminiscent of a pre-Columbian era.

For those less inclined to foot racing, the ChePe train offers a 15-hour scenic odyssey, weaving through 86 tunnels and over 39 bridges, showcasing the canyon's awe-inspiring magnitude. But be warned, your camera might not do justice to its grandeur.