As the highest mountain in Zhangjiajie, Tianmen Mountain holds deep cultural and spiritual importance. Legends surround the formation of Tianmen Cave, often associated with celestial events or divine intervention. It's considered a sacred site and a symbol of connection between heaven and earth. The most popular attractions are: 1, Tianmen Cave ("Heaven's Gate"), a massive 131.5-meter (431 ft) high hole eroded through the mountain peak. This breathtaking formation is often shrouded in mist, creating an ethereal, heavenly appearance. 2, Tianmen Cableway: One of the world's longest passenger cableways (7,455 meters / 4.6 miles), offering stunning panoramic views of the dramatic karst landscape and the 99-bend "Heaven-Linking Avenue" road below. 3, Tianmen Avenue: The serpentine mountain road with 99 sharp bends leading up to the cave's base.