Chungyuan Sacrifice (the seventh full moon in a lunar year) is the most important annual folklore sacrificial festival in Keelung, and the major site to hold the sacral ceremony is Chupou Altar. Early on, it was built on Hsinshi Street or Tsaowei store street, but it has been moved to Jhongjheng Park with much larger scale and more modern sense. At the three-story Chupu Altar, you may overlook the whole Keelung area. There is a museum where there is a collection of historical relics regarding Chungyuan sacrifice. The permanent exhibits of Chupu Altar include cultural artifacts related to the traditional rituals and related activities, and the ceremony highlights and histories are brought to life via multimedia presentations. There is also a special exhibits area with wide-ranging themes. The collection includes the rituals and articles used in Chungyuan Sacrifice. It also exhibits diversified Chungyuan Sacrifice items, so it is very valuable for you to come to explore. There is a lighting ceremony on the 15th of July of the lunar calendar; this activity always brings the public's ardent participation of Chupu Altar's ritual to new heights.