Located at the foot of Tiandu Mountain, on the outskirts of Hakkaido, Japan, this museum is an open museum converted from a real prison with more than 100 years of history. It needs to buy tickets to enter the museum. It belongs to the first attraction on the Abago Tourist Bus Line. Some of the buildings, such as labour and living facilities in the prison, were scattered throughout the hillsides, as most of them had been damaged for a long time and were now being rebuilt as they were. The museum has a modern prison history museum, which systematically introduces the history of the prison and the supervision facilities. The most important cultural relics in the prison museum are a complete prison building. Unlike other neatly arranged buildings, this building has a spoke structure.