Forty years ago, the Expo '74 World's Fair opened in Spokane, Washington to great fanfare as the world's first environmentally themed Expo. Perhaps equally as momentous, the former Soviet Union participated for the first time since World War II, and 5.6 million people attended throughout the course of the six month long Fair. This year, Olson Kundig Architects, led by design principal Tom Kundig, partnered with the City of Spokane to reinvent the original park with new concept designs for its structures, program, and facilities.