Are you brave enough to get up close and personal with Australia’s fearsome saltwater crocodiles? Then visit this "urban wildlife experience" in the heart of Darwin. You'll see almost 200 saltwater crocs, including some of the world's largest, as well as turtles, stingrays and barramundi. The huge reptile house is home to more than 70 species. Adrenaline junkies should head straight for the Cage of Death: You get into a clear-sided capsule, alone or with one other person, to be lowered into a pool filled with these prehistoric creatures. It's a safe—but terrifying—face-to-face encounter.