Is the classical garden an intangible cultural heritage of Wuxi?

For example, Jichang Garden is a classical garden building built in Ming Dynasty, located in Huishan Hengjie. It was built by Qin Yao's great-grandson Qin De at the end of Shunzhi in Qing Dynasty and rebuilt at the beginning of Kangxi. At that time, the famous gardener Zhang Lian Zinan Garden and his nephew Zhang Shi were invited to decorate the landscape carefully, manage the landscape, dredge the spring water and pile up stones, and the garden scenery would be beneficial. Emperor Kangxi and Emperor Qianlong visited the garden six times each, which was the heyday of the garden. But it is not intangible cultural heritage.