At some point in the past century, we got bored with ordinary vacations and started searching for the extraordinary. Summiting the world's highest peaks was once an activity reserved for the most extreme and physically fit people, but today amputees climb Kilimanjaro and families consider Everest's Base Camp a vacation spot. Face it, thrill seeking has officially reached another level. Luckily, there are plenty of options to make the most daring ones shake in their sneakers. Take a look at the ultimate bucket list for the true adventurer.