A sign outside indicates the tower's construction year and capacity in Vietnamese and French.
Built in 1894 it stands in a square formed by Hang Than, Hang Luoc, Hang Giay, Hang Dau, Quan Thanh and Phan Dinh Phung Streets.
Viet Cuong, a Hanoi researcher and expert in construction economic management, said Hang Dau Booth was a pioneering work that transformed Hanoi's urban landscape.