Forbidden Purple City (Tu Cam Thanh) - is a complex of palaces, intended for members of the royal family and the imperial concubines. On the territory of the Forbidden City has allowed the eunuchs and doctors.

The two-storey library (Thai Binh Law) was partially restored. Nearby you can see the base of the Royal Theatre (Zuen Duong Thi), pledged in 1826 and later located in the walls National Conservatory.

In one of the buildings are preserved fragments of paintings, old photographs and a collection of imperial robes of silk.