Kinmen has great potential for tourism due to its special geographic location and its abundant cultural assets, war relics, and military structures, as well as natural ecological resources such as protected bird species. To introduce the unique cultural assets and built environment of Kinmen, Chunghwa Post plans a set of four stamps on the scenery of Kinmen. The designs of the stamps follow: 1. Guningtou (NT$5.00): Guningtou is located at the northwest corner of Kinmen and includes the villages of Beishan, Nanshan and Lincu. It became fortress of democracy and freedom after the Battle of Guningtou in 1949. The traditional buildings in Nanshan and Beishan villages were mostly constructed during the late Ming Dynasty. These buildings are famous cultural and historical sites and tourist attractions.2. Zhaishan Tunnel (NT$9.00): Located in the southwest of Kinmen, the Tunnel is connecting to the Taiwan Strait. This underground Tunnel comprises two sections: a tunnel and a waterway. The tunnel part is about 100 meters long, 6 meters wide, and 3.5 meters high. The waterway section has a walkway with an attached dock for small boats to berth.3. Qingtian Hall (NT$10.00): Located halfway up Mt. Taiwu, Qingtian Hall is a man-made underground granite cave. It is 50 meters long, 18 meters wide and 11 meters high. The project was so difficult that the late president Chiang Kai-shek gave it the name Qingtian Hall (“hall that holds up the sky”), which he inscribed on a rock wall in the cave. 4. Lake Taihu (NT$10.00): Being an island in the sea, fresh water is hard to come by in Kinmen. To meet household needs and support military readiness, the military has constructed many reservoirs of various sizes in Kinmen. Lake Taihu is one of them. Dug in 1966, it is about 36 hectares in area, and has a capacity of 114 metric tons of water.