These stunning stone spires, rising from the forest in China"s Hunan province, are said to have inspired the floating mountains of the movie "Avatar." There are more than 3,000 of these quartz-sandstone pillars in Zhangjiajie National Forest Park, often swathed in mist, part of a spectacular landscape that has inspired generations of painters. These days, they are popularly known as the "Avatar Mountains" and one, the 3,544-foot-high Southern Sky Pillar, was officially renamed as "Avatar Hallelujah Mountain" in 2010, the year after the blockbuster movie was released.