link | 1970, architecture, expo70, japan | Tue Nov 3 09:42:23 EST 2020 link | 1970, architecture, expo70, japan, osaka, water | Wed Apr 29 10:37:21 EDT 2020 link | 1970, architecture, construction, expo70, japan | Wed Nov 28 22:27:47 EST 2018 link | 1970, architecture, expo70, japan, osaka | Thu Mar 5 20:04:15 EST 2015 link | 1970, books, expo70, japan, osaka, paper, rainbows, stripes | Mon Jan 26 22:41:06 EST 2015 link | 1970, books, expo70, japan, osaka, paper, rainbows, stripes | Mon Jan 26 22:40:46 EST 2015