The Hanoi Flag Tower was built in 1812 and is composed of three platforms and a tower. The words Nghenh Huc, meaning "to welcome dawn's sunlight," are inscribed on the eastern door. The western door bears the two words Hoi Quang, meaning "to reflect light," and the southern door, Huong Minh, meaning "directed to the sunlight." The tower is lightened by 36 flower-shaped and 6 fan-shaped windows. The National Flag of Vietnam is on top of the tower.