Gulangyu Island is a tiny island located on the estuary of the Chiu-lung River, facing the city of Xiamen. It is a Unesco World Heritage Site that used to be an important window for Sino-foreign exchanges during the 19th and 20th century. The island is a popular attraction for architecture enthusiasts, providing a mixture of different architectural styles including Traditional Southern Fujian Style, Western Classical Revival Style and Veranda Colonial Style. You can hike up the Sun Rock to overlook the whole island, take a walk in the Shuzhuang Garden (including the Piano Museum) which is one of the finest Jiangnan classical gardens, visit the Hao Yue Garden containing architectures from the Ming Dynasty (including a statue of national hero Zheng Chenggong), the organ museum, and the international letter carving art museum. Don't forget to send yourself a postcard from the future at local stores!