Happiness City Community: Formerly known as Huagang Village, it is located at the southernmost tip of Maqun Street, along Tuchengtou Highway, bordering Friendship Park and Trade City in the north, Tangshan Street and Dongshan Street in Jiangning District in the east and south, and Cangbomen Village in Xiaolingwei Street in Xuanwu District in the west. The whole village is strip-shaped, with a total land area of 2320 mu. There are 10 villagers' groups in the village, with 635 households and a population of 1735.

Happiness City Community is adjacent to Qingma Community, Xinkangyuan Community, Yuan Wenkang Community, Runkangyuan Community, Ningkangyuan Community, R&F Hengtian Jiayuan Community, Zhijia Garden Club Community, R&F Hengtian Future Community, Chaiquan Village Community, Dazhuang Community, Maqun Village Community and Guo Chang Community.

There are stone carvings in the ancient tomb of Shiziba Village, qixia temple in Qixia Mountain, Muyan Riverside Scenic Area in Nanjing, Taoxingzhi Memorial Hall in Nanjing and other tourist attractions. There are eight diagrams of Artemisia, New No.1 lotus root, 83- 1 double season water bamboo, Jinling gold foil, Nanjing wood carving and other special products.