The history of Hanoi is extremely rich, some monuments are preserved for hundreds of years until today. They are restored and maintained to provide visitors with a unique authenticity of Vietnam. In a series of important landmarks of Hanoi also includes the Thang Long Imperial Citadel, which was built in 1110. The Citadel is located in the heart of Hanoi, about 2.5 km from the Hoan Kiem Lake, on the way to the Ho Chi Minh mausoleum. You can walk, it is very easy accessible from the city center