Qingdao key cultural relics protection units. Formerly known as Qingdao, Germany accounts for the period known as the "arc that island." Because of its shape like a guqin, it also known as "dao." Is located in Qingdao Bay, 720 meters from the shore, an area of 0.012 square kilometers. 17 meters above sea level, with the pier, as a symbol of Qingdao. After Germany occupied Qingdao in 1900 to build a lighthouse on the island, in order to traffic in and out of Jiaozhou Bay navigation.