Kulangsu is a 1.88 sq km island located on the estuary of the Jiulong River, facing the city proper of Xiamen across the 600-plus m wide Lujiang Straight. With the opening of a commercial port at Xiamen in 1843, and the establishment of the island as an international settlement in 1903, this island off the southern coast of the Chinese empire suddenly became an important window for Sino-foreign exchanges. Kulangsu is an exceptional example of the cultural fusion that emerged from these exchanges, which remain legible in its urban fabric. There is a mixture of different architectural styles including Traditional Southern Fujian Style, Western Classical Revival Style and Veranda Colonial Style. The most exceptional testimony of the fusion of various stylistic influences is a new architectural movement, the Amoy Deco Style.