Hoan Kiem Lake in Vietnam is a beautiful and tranquil oasis in the bustling city of Hanoi. It is a stunning reminder of the country's rich history, with its ancient temples, pagodas, and monuments. The
From Wikipedia
Hoàn Kiếm Lake, also known as Sword Lake or Tả Vọng Lake, is a fresh water lake, measuring some 12 ha in the historical center of Hanoi, the capital city of Vietnam.