Illinois host Building at the Century of Progress 1933-34 Chicago World's Fair, at night. Squared base and round top of the building are brightly illuminated against black surroundings. The word ILLINOIS in black letters shows in front of the rounded part of tower. Near the base cut-out sections of wall show the names of counties. A decorative panel goes from the top of the entrance doors to the state seal at the top. Photo shows very dramatic lighting effect. Photo is mounted on ecru paperboard mat.