Dongbuk Gangnu is a tower above a pond called Yongyeon located in the northeast of the Hwaseong Fortress. Its nickname is Banghwasuryujeong. This is one of the most beautiful bowers of the Joseon Dynasty. The structure originally served as the second provisional battle command in case enemies took the main command post in Hwaseong Fortress in Mt. Paldalsan. However, due to the outstanding beauty of Yongyeon, it became a place for feasts rather than for battles.