Electrical Building at the Century of Progress 1933-34 Chicago World's Fair. In the foreground are 2 sets of 3 steps leading up to a long flight of steps leading up to an open terrace with a railing. Above that is another terrace around a long windowless wing (except for windows at the end). A few trees are beside the steps. Dramatic cloud formations are above the building. Photo is mounted on ecru paperboard mat.