Introduction to the Observation Corridor: The Observation Corridor is 310 meters long. The overall structure is imitation of the Han Dynasty style. The columns, beams and railings are decorated with Han Dynasty patterns, with smooth lines, simple and elegant. The stone wall in the middle of the corridor is engraved with the "Picture of Zhaojun's Exodus from the Fortress", which reproduces the historical story of Zhaojun's departure from the fortress. The painting style is elegant and simple, and the characters are lifelike.