Half Dome, Yosemite National Park, California
The 5,000-foot climb to the top of Half Dome is the most strenuous of Yosemite Valley’s day hikes, and it’s the last 400 feet that are the most dangerous. It’s a near-vertical climb, and while there are ladder-like metal cables to help you reach the summit without rock climbing equipment, falling off them could be deadly. And let’s not forget that Half Dome is basically a huge lightning rod, and in 1985, lightning struck five friends on the park’s tallest granite peak, killing two and injuring three.
Cliffs of Moher, Ireland
With breathtaking views of the Aran Islands and Galway Bay, the Cliffs of Moher is one of Ireland’s most popular tourist attractions. However, it’s also one of the most dangerous, and one misstep at the edge could result in a 700-foot tumble into the Atlantic. The safest way to experience the awe-inspiring beauty of the cliffs is from the official path or one of three viewing platforms. Here are more epic vacation destinations for adrenaline junkies.