Zhang Yuan is a museum in Shanghai's Shikumen Lane. Its innovative protective expropriation and transformation model of "requisitioning without demolishing, people leaving the house" provides a new path for the protection of a large number of historical buildings.
The most difficult aspect of conservation is often not the built heritage itself, but how to balance the cost of conservation with its revitalization. Zhang Yuan should not only be regarded as a museum, but should be linked with the development of the whole society.