The Paria Canyon-Vermillion Cliffs Wilderness is one of the country’s last great wild refuges, a 112,500-acre maze of backcountry canyons, cliffs, deserts and plateaus untouched by man. You’ve ...

For millions of years, the land we now call the United States has been home to towering prehistoric beasts, strange sea creatures, and lush ancient forests that no longer exist. Evidence of this ...

Africa’s landscapes are full of drama—towering cliffs, sculpted sandstone, balancing boulders and ancient rock walls etched ...