Hoan Kiem Lake (Vietnamese: Hồ Hoàn Kiếm, meaning "Lake of the Returned Sword" or "Lake of the Restored Sword"), also known as Hồ Gươm (Sword Lake), is a lake in the historical center of Hanoi, the capital city of Vietnam. The lake is one of the major scenic spots in the city and serves as a focal point for its public life.
https://en.wikipedia.org/wiki/Ho%C3%A0n_Ki%E1%BA%BFm_Lake