7. Vermillion Cliffs National Monument, Arizona, USA

Vermillion Cliffs National Monument, Arizona, USA

Vermillion Cliffs National Monument's enormous wilderness is breathtaking.

Some parts of this 280,000-acre scenic landscape are so harsh and unrelenting in nature that you'll need a permit just for hiking there, never mind climbing, camping or taking selfies with bears, eagles or wolves grinning over your shoulder!

Be prepared to tackle elevations that range from 3,100 to 7,100 feet, wearing sturdy hiking boots, not fashionista sandals.

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