What museum is now housed in the palace built by Nguyễn An and others in the 15th century?
Nguyễn An Nguyễn An (Sino-Vietnamese 阮安; died 1453), known in Chinese as Ruan An (pinyin) or Juan An (Wade-Giles), was a Ming dynasty eunuch, architect, and hydraulics specialist between the first and fifth decades of the 15th century. Born in Vietnam, he was taken as tribute from Vietnam to China and later became a eunuch and architect in service to the Chinese emperors. He, along with numerous architects, such as master designers and planners Cai Xin (蔡信), Chen Gui (陳珪), and Wu Zhong (吳中), master carpenter Kuai Xiang (蒯祥), and master mason Lu Xiang (陸祥), was an important builder of the Forbidden City in Beijing.
Tomb of Gia Long Tomb of Gia Long (Vietnamese: "Lăng Gia Long" ), officially Thien Tho Tomb ("Lăng Thiên Thọ" ), is a royal tomb of the Nguyễn Dynasty which is located in the Hương Thọ commune of Hương Trà district, some 20 kilometres south of the city of Huế.