Some of the trees in the area are very old and have cultural significance, such as the "Han Dynasty Cypresses", which were planted by the Emperor Wu Di, the "Tang Chinese Scholartree" (about 1,300 years old), the "Welcoming-Guest Pine" (500 years old) and the "Fifth-Rank Pine", which was named originally by the Emperor Qin Shi Huang, but was replanted about 250 years ago.