Tongyeong City Museum is a museum in Tongyeong that covers the city's history. It is free to enter and shows Tongyeong's past and history related to Yi Sun-sin by period. The building is the old Tongyeong County Office, built in the 1940s and a modern cultural heritage site, with staircases, wall tiles and arch structures visible on the first and second floors. The exhibition is small, so viewing takes about 20 to 30 minutes.