Haewoojae Museum (Mr. Toilet House) (해우재)

Haewoojae Museum (Mr. Toilet House) is a public institutional museum in Suwon, Gyeonggi-do, dedicated to the cultural-historical heritage of toilets and sanitation — both Korean and global — set inside a building designed in the shape of a toilet. The museum was originally the home of the late Sim Jae-deok ("Mr. Toilet"), Suwon's former mayor and the founder of the World Toilet Association, who was a global advocate for sanitation infrastructure. The museum walks visitors through Korean and global toilet history, sanitation infrastructure development, public-health-and-sanitation themes, and the broader cultural significance of toilets in human civilization. The unusual subject matter and the toilet-shaped building have made the museum one of Korea's most-distinctive cultural destinations.