The Qianling Museum

The Qianling Mausoleum (Chinese: 乾陵; pinyin: Qiánlíng) is a Tang dynasty (618–907) tomb site located in Qian County, Shaanxi province, China, and is 85 km (53 mi) northwest from Xi'an.
Built in 684 (with additional construction until 706), the tombs of the mausoleum complex house the remains of various members of the House of Li, the imperial family of the Tang dynasty. This includes Emperor Gaozong (r. 649–83), as well as his wife, Wu Zetian, who assumed the Tang throne and became China's only reigning female emperor from 690–705. The mausoleum is renowned for its many Tang dynasty stone statues located above ground and the mural paintings adorning the subterranean walls of the tombs. Besides the main tumulus mound and underground tomb of Emperor Gaozong and Wu Zetian, there are 17 smaller attendant tombs, or peizang mu. Presently, only five of these attendant tombs have been excavated by archaeologists, three belonging to members of the imperial family, one to a chancellor, and the other to a general of the left guard. The Shaanxi Administration of Cultural Heritage declared in 2012 that no further excavations would take place for at least 50 years.