A phenomenal combination of natural beauty and unparalleled danger, this mind-blowing glacier in the heart of Alaska's ...

The Vikos Gorge lies in the North Pindus Mountains in the historic area of Epirus. This almighty gorge is a true wonder of the natural world and has been dubbed the “Greek Grand Canyon”.

The Grand Canyon is enormous in every way — 277 miles long, 18 miles across at its widest point and a mile deep, revealing 2 billion years of geological history — but the place it holds in our ...

Carved out by the Colorado River, the Grand Canyon (nearly 1,500 m deep) is the most spectacular gorge in the world. Located in the state of Arizona, it cuts across the Grand Canyon National Park. Its ...

Sedona is just the tip of the iceberg when it comes to spectacular views and hiking trails – just a short two-hour drive north lies one of America's great natural wonders: The Grand Canyon.

This story appears in the September 2016 issue of National Geographic magazine. “If you break loose here, you can’t stop. You’re going into the abyss,” barks Rich Rudow. Normally he is ...