Smithsonian Exhibit at the 1888 Cincinnati, Ohio, Exposition, by Unknown, 1888, Smithsonian Archives - History Div, A general view of the Smithsonian Institution Exhibit looking north at the 1888 Centennial Exposition of the Ohio Valley and Central States in Cincinnati, Ohio. The Smithsonian coordinated all of the U.S. Government exhibits and prepared a display on its activities and collections for the exposition. Benches back to back are down the center of the Exhibit Hall. Cases display artifacts and pictures hang on bunting hung from the ceiling..