Heiwa-to, also known as the Tower of Peace, is located next to a pond in Daisen Park Sakai Osaka Prefecture.
Tatsusayama Kofun is the keyhole shaped burial mound, which is approximately 61m long, 26 m wide in the rectangular part and 43m across in round section. Tatsusayama Kofun is located right next to Daisenryo Kofun in Sakai City Osaka Prefecture. Due to its close proximity to the Daisenryo Kofun, it is believed that Tatsusayama Kofun is for part of Emperor Nintoku-ryo entourage. The narrow moat around Tatsusayama Kofun has been restored.