Expo '70 Commemorative Park

This guide to Expo '70 Commemorative Park in Osaka centers on Taro Okamoto's Tower of the Sun, the three-faced concrete guardian built for the 1970 World Expo that drew some sixty million visitors. You'll hear about the golden, painted and black faces standing for future, present and past, and about a fourth face Okamoto hid underground in a chamber called Prayer. That face vanished when the fair closed and the pavilions came down, and the guide traces the tower's decades of neglect before its restoration.