These thin and tall mountains look so alien that they even appeared in James Cameron’s movie “Avatar”. They formed underwater 380 million years ago. The water ate the soft sandstone, leaving only stone pillars behind. Some of them have reached over 4000 feet above sea level. Around 3000 of these pillar giants are spread around only 16.5 thousand acres of land. It's among the most spectacular places in China, but also very alien and eerie.