Located in the center of the city, Zhenyuan Building, also called the Drum-Tower by the local people, is the biggest drum tower in the Gansu Corridor present.

　　The building is a three-floor turriform architecture with cornices and rake angles. It is a traditional Chinese architecture with elegant and solemn carved beams and painted rafters.

　　There is a cross cave under the building, which leads to the four directions. Passengers and small-sized vehicles are able to pass through. There are four engraved steles embedded above the gates of the cave, that is "XuSheng" which means sunrise on the east, "Gu Cheng" which is a merchant city on the west, "Ying Xun" which means facing fume on the south, and "Zhen Yuan" which means guarding lands afar on the north.

　　Upon the building hang four steles. The eastern one writes "Golden City and Spring Rain", the western one writes "Jade Pass and Moon in Dawn", the southern one writes "Sunny Day after Snowing in Mount Qilian", and the north one writes "Residence Stretches to Old Pastureland". The completely preserved stone tablet recording the reconstruction of Ganzhou Drawbridge and Zhenyuan Building stands in the north of the building.