Olympic Aquatic Cube - now a water park. Bejing, China
Off the beaten path you can do cage diving with crocodiles...Australia is a prime location for this along with South Africa. Coming face to face with the jaws of these terrifying and immensely powerful prehistoric creatures is certain to give you the heebie-jebbies...10 Unusual Ideas to Add to your Bucket List
Skocjan Caves in Slovenia. One of the largest underground canyons in the world with the Reka river still carving through it. At 60 meters wide and 140 meters deep, this canyon is a fraction of the Grand Canyon’s size, but the fact that it’s all underground makes it feel bigger. When you cross the canyon via the narrow Hanke Canal Bridge, you’ll see the roaring river far below.