This is the Bai Long Elevator which is one option to ascent or descent Tianzi Shan, a part of the Zhangjiajie National Forest Park. The other is by cable-car. This elevator is the highest in the World and at more than 300 m in height is higher than the one installed in the UOB Building in Singapore. About one third of the elevator ride is in the mountain and the remaining opened, with commanding views of the surroundings.