The Beijing Dabaotai Western Han Dynasty Mausoleum (Chinese: 北京大葆台西汉墓博物馆) is a museum built over the tombs of Western Han dynasty prince Liu Jian and his wife at Dabaotai in Fengtai District of southwestern Beijing Municipality about 15 km (9.3 mi) southwest of Beijing's city centre. The two tombs are over 2,000 years old and were discovered in 1974. Also discovered in the vicinity are remnants of a residence from the Jin dynasty (1115–1234). The museum opened in 1983 and has been closed since 2012 for renovation and expansion.