From March 13, 1970—a snowy day in the Senri Hills of Osaka—through the 180-plus days leading up to the closing of the World Expo on September 16, a total of 18,000 staff members, led by Executive Producer Suketaro Taguchi, captured this celebration of the century on 100,000 feet of film, documenting everything from that first day to the final, deserted scenes of the venue.