Thinker on a Rock by Barry Flanagan in the Nationa… Cubi XXVI by David Smith in the National Gallery S… Cubi XXVI by David Smith in the National Gallery S… Typewriter Eraser Scale X by Oldenburg and Van Bru… Typewriter Eraser Scale X by Oldenburg and Van Bru… Typewriter Eraser Scale X by Oldenburg and Van Bru… Four-Sided Pyramid by Sol Lewitt in the National G… Four-Sided Pyramid by Sol Lewitt in the National G… House I by Roy Lichtenstein in the National Galler… House I by Roy Lichtenstein in the National Galler… House I by Roy Lichtenstein in the National Galler… House I by Roy Lichtenstein in the National Galler… Greek Bronze Box Mirror in the Metropolitan Museum… Terracotta Squat Lekythos Attributed to the Washin… Marble Head of a Young Woman from a Funerary Statu… Marble Head of a Young Woman from a Funerary Statu… Jar with an Ibex Design in the Metropolitan Museum… Detail of a Jar with an Ibex Design in the Metropo… Wall Plaque with a Geometric Design in the Metropo… Furniture Plaques in the Metropolitan Museum of Ar… Memorial Head in the Metropolitan Museum of Art, D… Head of an Oba in the Metropolitan Museum of Art,… Dan Mask in the Metropolitan Museum of Art, Decemb… Fountain in the National Gallery Sculpture Garden,… Detail of Painting and Sculpture by Tassaert in th… Painting and Sculpture by Tassaert in the National… Poetry and Music by Clodion in the National Galler… Detail of Cakes by Wayne Thiebaud in the National… Detail of Cakes by Wayne Thiebaud in the National… Detail of Cakes by Wayne Thiebaud in the National… Cakes by Wayne Thiebaud in the National Gallery, S… Detail of Look Mickey by Roy Lichtenstein in the N… Look Mickey by Roy Lichtenstein in the National Ga… Detail of Roulin's Baby by Van Gogh in the Nationa… Roulin's Baby by Van Gogh in the National Gallery,… Roulin's Baby by Van Gogh in the National Gallery,… Detail of Waterloo Bridge: Gray Day by Monet in th… Waterloo Bridge: Gray Day by Monet in the National… Detail of Both Members of this Club by Bellows in… Both Members of this Club by Bellows in the Nation… The Lone Tenement by Bellows in the National Galle… Detail of Venice: The Dogana and San Giorgio Maggi… Detail of Venice: The Dogana and San Giorgio Maggi… Detail of Venice: The Dogana and San Giorgio Maggi… Venice: The Dogana and San Giorgio Maggiore by Tur…