Osaka Banpaku Kinen Koen (万博記念公園) Osaka (大阪) Osaka hosted the World Expo in 1970 and constructed a vast site now called Expo '70 Commemorative Park or Banpaku Kinen Koen. Brodie Read more posts by this author. Brodie 8 Aug 2011 • 2 min read Tower of the Sun (Taiyo no To)National Museum of Ethnology, OsakaNamba Parks, Namba, Osaka (not in Banpaku Kinen Koen)