2. Yosemite National Park’s Half Dome, California
Looking to laugh at Death in the face? This is the place to do it. It takes an entire day to climb to the top and can burn as much as 10,000 calories, which sounds great if you are into fitness. But major problems arise when you reach the last 400 feet, which is nearly vertical and requires the aid of metal cables while climbing slippery rocks. More than 60 people have been killed attempting this.