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Introduction to the Hanwu Immortal Platform: There is a high earthen platform outside the south wall in front of the Huangdi Mausoleum. It was built by Emperor Wu of the Han Dynasty to worship the Yellow Emperor, hence the name "Hanwu Immortal Platform". "Historical Records·Fengchan Book" records: "Emperor Wu of the Han Dynasty patrolled Shuofang in the north, and sent more than 100,000 troops to pay homage to the Yellow Emperor's Tomb Bridge Mountain." The Immortal Platform of the Han Dynasty is more than 20 meters high. It is now built with stones and has stone steps and steps. Cloud boards, guardrails, etc.