"Hoon high pillar" monument: Qing Tongzhi nine years (1870) in October, Zeng by Zhili Governor in Nanjing, the third time the two rivers became governor. Departure to Beijing audience coincided had six-year-old birthday, Tongzhi Emperor personally thanks to "hoon high pillar," the word reward longevity. After Zeng arrived in Nanjing, choose auspicious stone erected in Two Rivers Governor's Office, "Yu Shu floor" inside. After the monument oblivion. 1990 residents unearthed here at the base of the wall, Xu moved to the park, in April 2002 re-shift place.