14. Heard Island Volcano, Australia

Although this island is located between Madagascar and Antarctica, it is still considered Australian territory. While it looks like a scene out of Happy Feet, do not be confused because Heard Island is hazardous for the public. The main reason people cannot visit is because of the active volcano. 

In 2000, researchers noticed huge lava flow from the volcano. If that isn't enough to deter you, it is known for its poor weather conditions, and it is a two-week boat trip from the closest landmass. Unless you are with a National Geographic team, it is not a place you would even want to go.