The longest prayer wheel, Labrang Temple has the world's longest prayer corridor, the total length is about 2.5 kilometers. The wall of the promenade hangs a nearly one-person high prayer wheel. It is said that the barrel is equipped with a prayer wheel, and it is rotated by hand. Every turn is equivalent to reading the verse once. Every morning and evening, Tibetans will follow the promenade and push the prayer wheel clockwise. The constant rotation of the prayer wheel represents endless praise, endless piety.