Located on the western edge of Grant Park in Chicago, the main building of the Art Institute was built for the 1893 World's Columbian Exposition and features two lion statues at its entrance (which are often decorated for special occasions, e.g. with jerseys when Chicago sports teams are in the playoffs). It has an outstanding collection of French Impressionist and American works such as Georges Seurat's A Sunday on La Grande Jatte, Henri de Toulouse-Lautrec's At the Moulin Rouge, Grant Wood's American Gothic, and Edward Hopper's Nighthawks.