9.Mud Volcanoes of Azerbaijan, Bozdagh, Azerbaijan

These mini-volcanoes, some as high as 650 feet above the ground, turn the coast of the Caspian Sea into a very dangerous place. A full 300 of the earth's 700 mud volcanoes can be found here, ejecting millions of cubic meters of hydrocarbon gases into the atmosphere.
In 2001, witnesses saw flames eject more than 50 feet and the mud volcano was still belching fire three days later. Despite the danger, people of the region claim that the mud has healing properties prompting health seekers around the world to make the trek to this alien-like place to bath in the mud. To make the off planet experience even more vivid, there is a natural rock formation right in the midst of these volcanic mud monsters that makes music.
8.The Devil's Postpile California, USA


Mammoth Mountain in Madera County California is the home of Devil Postpile National Monument. Like an alien landscape, this columnar basalt cliff appears out of place from the rest of what used to be part of the Yosemite National Park lands. This strange formation was made by a lava flow that pooled to 400 feet and slowly seeped out. Then, amazingly, a glacier slowly moved through and polished the columns. The strange, alien-like structure was almost destroyed twice. Once during blasting for gold in the 1800s and then when a hydroelectric plant was scheduled to be built there. Walter L. Huber persuaded President Taft to declare the Devil's Postpile a National Monument in 1911 and saved it for us.