Located on a pine hill at No.2 Yet Kieu street, Dalat city, the palace os now the National Preservation Center 4. It is the palace which stores the historical treasure: 34,555 pieces of wood-made document of Nguyen Dynasty. Recently, it has been recognized as the World document heritage and it is in the program: Memory of the World. The palace was built in 1958 and it has an area of 13,000m2, including three villas with the romantic names: Bach Ngoc, Lam Ngoc and Hong Ngoc. After repaired and re-decorated, Tran Le Xuan palace has become a place for tourist visitting since 2008. Beside its palaces, visitors can also see directly the pieces of wood-made document of Nguyen Dynasty and other document such as Document about Vietnam since 1962, document about the Central and Highland of Vietnam in the war (1954 - 1975), book: Dalat - Lamdong past and present".