Xicheng District, Beijing. Xidan Wedding Building has been moved to No.0/09 Xidan North Street, Xicheng District, Beijing. There are 38, 46 and 68 buses nearby. Xidan Wedding Mansion is the only wedding enterprise in Beijing that takes marriage as its theme and operates in the form of a shopping mall. 1 The main commodities on the floor include international wedding photo studio, wedding supplies and flower customization. The main products on the second floor are fine wedding dresses, make-up accessories and Chinese cheongsam.