In the very centre of the Imperial Enclosure, there’s almost nothing left of the once-magnificent Forbidden Purple City. This was a citadel-within-a-citadel-within-a-citadel and was reserved solely for the personal use of the emperor – the only servants allowed into this compound were eunuchs who would pose no threat to the royal concubines. The Forbidden Purple City was almost entirely destroyed in the wars, and its crumbling remains are now overgrown with weeds.