Introduction to the Four Archways: Located on Boai Road, it was built during the Qianlong period of the Qing Dynasty and has been standing for nearly 300 years. The Sipailou Archway was once the coordinate center of Haikou, with four entrances and exits. It was the "Arch of Triumph" of Haikou City, where people welcomed promoted civil servants and generals, and successful candidates.
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