If you're the adventurous type, you probably aren't satisfied with the "normal" vacations that many travelers take. Another trip to the beach? No thanks. You need something even more intense than a backpacking trip around Europe to satisfy your sense of adventure. How about hanging out with gorillas in an African forest or dropping from a helicopter onto a snow-covered mountain? If you are so inclined, there are plenty of intense travel destinations for you to check out that will surely keep your adrenaline pumping. Read on to learn about ten extreme vacations that will take you from the infinity of space to the depths of the ocean.