Watch Opening Ceremonies, St. Louis Exposition (1904) : Full Movie Online Free A camera in the Plaza of St. Louis at the World's Fair slowly pans counter clockwise in nearly a full circle: we see the crowd and various buildings, palaces, statues, arches and columns built for the fair. It's opening day, April 30, 1904. After the camera has done its circular pan, it comes to rest with a raised dais visible to the left, where dignitaries stand and speak to the crowd.