Hanoi was the capital and the administrative center for French Indochina for most of the colonial period (from 1902 to 1945). The French colonial architectural style became dominant, and many examples remain today: tree-lined boulevards (such as Phan Dinh Phung street, Hoang Dieu street and Tran Phu street) and many villas, mansions, and government buildings. Many of the colonial structures are an eclectic mixture of French and traditional Vietnamese architectural styles, such as the National Museum of Vietnamese History, the Vietnam National Museum of Fine Arts and the old Indochina Medical College. Gouveneur-Général Paul Doumer (1898–1902) played a crucial role in colonial Hanoi's urban planning. Under his tenure there was a major construction boom.