Located on the west side of Osaka Castle Park, the museum displays cultural relics, physical models and multimedia displays show the various historical periods from ancient to present. The palace model on the top floor is one of the museum's "priceless treasures" based on the original appearance of Namba Palace and the same proportion. From the museum's glass windows, you can see the ruins of Namba Palace and the Tianshou Pavilion in Osaka Castle.