The rock ridges a mile south of Pilot Butte cooled from molten lava thousands of years ago, but it took only a few weeks to blast and crush the formations. The 32-acre flattened dirt site east of 15th ...

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 ...

Giant's Causeway in Northern Ireland formed ~60 million years ago from cooling lava. The Wave in Arizona, USA, is Navajo Sandstone from the Jurassic period. Moeraki Boulders in New Zealand formed ~60 ...

Nature doesn’t follow blueprints, and sometimes the result is strange enough to stop you in your tracks. Around the world, erosion, lava, and sediment have shaped landscapes that feel less like ...

Along parts of Portugal’s Atlantic coastline, especially on Madeira Island, cliffs rise in neat vertical columns that look uncannily like the pipes of a giant o ...