The best-preserved and largest Qing Dynasty princely mansion is that of Prince Gong.

Located at Qianhai Xijie, north of Shichahai, it is an excellent example of ancient Chinese architecture.

It is made in a traditional courtyard style which was extremely popular in imperial Beijing, and covers an area of 60,000 square metres, with just over half consisting of buildings and the rest an ornamental garden.

Built around 1777, the mansion was originally the home of Heshen, a member of the imperial guard, who came to the attention of Emperor Qianlong (1736-1796).

Despite being just 25, he was promoted to senior positions but became corrupt and used his authority to gain wealth, although the emperor was too old to do anything about it.

However, the next emperor, Jiaqing (1796-1820), had him executed and confiscated his property, with the mansion passing to Prince Qing in 1799 and then when Emperor Xianfeng was in power Prince Gong received it, with his name remaining today.

Entrance is CNY 20 (£1.51) or CNY 60 (£4.53) for entrance, a guide and other extras.

Around 40 minutes is the recommended time for a visit, and the mansion is open from 08:30 until 17:00.