Expo '70 (Banpaku)

Expo '70 (日本万国博覧会 Nihon bankoku hakuran-kai^?) was a World's Fair held in Suita, Osaka, Japan between March 15 and September 13, 1970.

The theme of the Expo was "Progress and Harmony for Mankind."

In Japanese Expo '70 is often referred to as Ōsaka Banpaku (大阪万博).

This was the first World's Fair held in Japan.
 
The master plan for the Expo was designed by the Japanese architect Kenzo Tange helped by 12 other Japanese architects who designed elements within it. Bridging the site along a north/south axis was the Symbol Zone. Planned on three levels it was primarily a social space which had a unifying space frame roof.
The designers liked the idea that like the 1851 London Exposition, the roof of the Symbol Zone could be a unifying entity for the expo.

Osaka was chosen as the site for the 1970 World Exposition by the Bureau of International Expositions in 1965.

A popular highlight of the fair was a large moon rock on display in the United States' pavilion. It had been brought back from the moon by Apollo 12 astronauts in 1969.

The site of Expo '70 is now Expo Commemoration Park (万博記念公園 Banpaku kinen-koen^?). Almost all pavilions were demolished, and there remain some memorials and among a few still-intact pieces, the most famous one is the Tower of the Sun (太陽の塔 Taiyō-no tō^?) designed by the Japanese artist Tarō Okamoto.