GREAT NATURE -- Mystical Lands of Stone: China

Southern China -- home to some of nature's greatest landscapes. In one part of China, a sea of strange stones washes over the undulating landscape, and in another, an alien forest of precipitous rocks towers 400 meters above the ground. To unravel the mysteries of these geological wonders, a team of Japanese filmmakers put their lives on the line. They take to the air, plunge the depths, and scale heady heights to understand how our planet looked in ancient times. China's mystical lands of stone are by far some of nature's greatest feats, and they continue to be sculpted in a rock-ridden world that refuses to sleep.