This art history video discussion looks at Donald Judd's "Untitled", 1969, ten copper units, each 9 x 40 x 31 inches with 9 inch intervals (Guggenheim Museum, New York).

This art history video discussion examines Donatello's "St. Mark", 1411-13, marble, 93" (236 cm), Orsanmichele, Florence.

This art history video discussion examines Donatello's "David", bronze, late 1420s to the 1460s, likey the 1440s (Museo Nazionale del Bargello, Florence).

In this Smarthistory video Dr. Beth Harris and Dr. Steven Zucker discuss Donatello's "Equestrian Monument of Gattamelata" (Erasmo da Narni), 1445-53, bronze, in the Piazza del Santo, at Padua.

This art history video discussion examines Donatello's "Feast of Herod", panel on the baptismal font of Siena Cathedral, Siena, Italy, Gilded bronze,1423--1427.

This art history video discussion examines Donatello's "Madonna of the Clouds", c. 1425--35, marble, 33.1 x 32 cm / 13 1/16 x 12 5/8 inches (Museum of Fine Arts, Boston).

This art history video discussion examines Duccio's "The Rucellai Madonna", 1285-86, tempera on panel, 177 x 114" or 450 x 290 cm (Uffizi, Florence).

This art history video discussion examines Duccio di Buoninsegna, Madonna and Child, tempera and gold on panel, c. 1300 (Metropolitan Museum of Art).

This art history video discussion examines Duccio's "Maesta" (front view), 1308-11 (Museo dell'Opera Metropolitana del Duomo, Siena).

This art history video discussion examines Duccio di Buoninsegna's "The Virgin and Child with Saints Dominic and Aurea", c. 1315, tempera on wood, 42.5 x 34.5 cm (National Gallery, London).

This art history video discussion examines Marcel Duchamp's "Boite-en-valise (the red box)", series F, 1960 (Portland Art Museum).

This art history video discussion looks at Marcel Duchamp's "Fountain" (1917/1964). Porcelain urinal, paint (San Francisco Museum of Modern Art).

This art history video discussion examines Albrecht Dج_rer's prints: "Four Horsemen of the Apocalypse" (ca. 1497‰غز98) and "St. Jerome in his Study" (1514).

This art history video discussion examines Albrecht Dج_rer's "Self-portrait", 1498, oil on panel, 52 x 41 cm (Museo Nacional del Prado, Madrid).

This art history video discussion examines Albrecht Durer's "The Large Piece of Turf", 1503, watercolor and gouache on paper, 16-1/8 x 12-5/8 inches / 41 x 32 cm (Graphische Sammlung Albertina, Vienna)

This art history video dicussion examines William Dyce's "Pegwell Bay, Kent - a Recollection of October 5th 1858" 1858-60, oil on canvas (Tate Britain, London).

This art history video discussion examines "Dying Gaul", an ancient Roman marble copy of a lost bronze Greek sculpture, c. 220 BCE.

In this art history video discussion Beth Harris and Steven Zucker look at Albrecht Dج_rer's "The Four Apostles", oil on wood, 1526. Alte Pinakothek, Munich.

This art history video discussion examines Ed Kienholz's and Nancy Reddin Kienholz's "Useful Art #5: The Western Hotel", 1992, (Portland Art Museum).

This art history video discussion examines Edouard Manet's "Olympia", oil on canvas, 1865 (Musee d'Orsay, Paris).