Set in a 738 acre Denver Mountain Park, Red Rocks Amphitheatre is no ordinary stage — it’s also a geological wonder. Discover ...

Flying parallel to the Hawaii Island’s north shore during our descent, my window frames sheer cliffs and majestic waterfalls. As we continue south along the Kona Coast, those of us fortunate ...

Getting there is half the adventure, as guests can either take the Via Ferrata ("Iron Way"), which includes crossing a hanging bridge 600 feet above the valley and climbing sheer cliffs in in the ...

Once widespread, they have been forced by human predation to occupy a marginal niche habitat on the sheer cliffs of Ethiopia’s mountains. Experts discuss how humans cannot get to the cliffs and ...