Tianzi Mountain and Yuanjiajie in Hunan Province, China, offer visitors a surreal landscape that served as inspiration for the floating mountains in James Cameron’s blockbuster movie “Avatar.” The enormous limestone pinnacles, draped in vegetation and often veiled in mist, create an otherworldly atmosphere. The unique landscape of towering sandstone pillars, some reaching heights of over 3,000 feet, offer views that indeed seem to belong to another planet entirely.
The area was once a vast sea. …