Museum Tours Accademia Carrara, Bergamo, Italy Acquavella Galleries, Inc., New York Addison Gallery of American Art Albright-Knox Art Gallery, Buffalo, New York Alte Pinakothek, Munich Amon Carter Museum, Fort Worth, Texas Art Gallery of Ontario Art Gallery of South Australia Art Institute of Chicago, Illinois Atkinson Art Gallery, Southport, England, The Baltimore Museum of Art Barnes Foundation, Merion, Philadelphia Bayerische Staatsgemaldesammlungen, Munich Beyeler Gallery, Basle Bilbao Fine Arts Museum, Spain Birmingham Museums and Art Gallery, England British Museum, London Brooklyn Museum of Art, New York City Butler Institute of American Art, Youngstown, Ohio California Palace of the Legion of Honor, San Francisco Christopher Wood Gallery, London, England Chrysler Collection, Norfolk, Virginia City of Bristol Art Gallery, England Cleveland Museum of Art, Ohio Columbus Museum of Art, Ohio Convent of San Marco, Refectory, Florence Corcoran Gallery of Art, Washington D.C. Courtauld Institute Galleries, London Currier Gallery of Art, Manchester, New Hampshire Delaware Art Museum Detroit Institute of the Arts Egyptian Museum, Cairo Fogg Art Museum, Cambridge, Massachusetts Fondation Maeght, Saint-Paul, France Freer Gallery of Art, Washington, DC Frick Collection, The, New York Galerie Isy Brachot, Brussels, Belgium Galleria Borghese, Rome, Italy Galleria Capitolina, Rome, Italy Galleria Doria Pamphilj, Rome, Italy Galleria Nazionale d'Arte Antica, Rome, Italy Galleria Nazionale d'Arte Moderna, Rome, Italy Galleria Nazionale, Parma, Italy Galleria della Uffizi, Florence, Italy Gallerie dell'Accademia, Florence, Italy Gallerie dell'Accademia, Venice, Italy Gemaldegalerie, Germany Glasgow Art Gallery and Museum Graphische Sammlung Albertina, Vienna, Austria Guggenheim Hermitage Museum, Las Vegas Guggenheim Museum, New York Guildhall Art Gallery, London Gulbenkian Foundation, Portugal Harris Museum and Art Gallery, England Henry Luce III Center for the Study of American Culture Hermitage at St. Petersburg, Russia Honolulu Academy of Arts, Hawaii Hunter Museum of American Art, Tennessee Huntington Library, San Marino, California Ipswich, Museums and Galleries, UK J. Paul Getty Museum, Los Angeles, California Joslyn Art Museum, Omaha, Nebraska Kimbell Art Museum, Fort Worth, Texas Kroller-Muller Museum, Otterlo, Netherlands Kunsthaus, Zurich, Switzerland Kunsthistorisches Museum, Austria Lady Lever Art Gallery, England Laing Art Gallery, England, UK Leicester Galleries, London, England, UK Leo Castelli Gallery, New York Los Angeles County Museum of Art, California Louvre Museum, Paris, France Maas Gallery, London, The Manchester City Art Galleries, England Mauritshuis Museum, The Hague Metropolitan Museum of Art, New York Milwaukee Art Museum, Wisconsin Minneapolis Institute of Arts, Minnesota Montclair Art Museum, New Jersey Munch Museum, Oslo, Norway Musee Marmottan, Paris, France Musee National de Malmaison, France Musee National du Moyen Age, Cluny, Paris, France Musee Picasso, Paris, France Musee Royaux des Beaux-Arts, Brussels, Belgium Musee Saint Denis, Rheims Musee Turpin de Crisse, Angers, France Musee d'Orsay, Paris, France Musee des Augustins, France Musee des Beaux-Arts de Rennes, France Musee national du chateau de Compiegne, France Museo Nacional Reina Sofia, Madrid, Spain Museo Nazionali di Capodimonte, Naples Museo de Arte de Ponce, Puerto Rico Museum H.R. Giger, Switzerland Museum of Contemporary Art, Chicago, Illinois Museum of Contemporary Art, Los Angeles Museum of Fine Arts, Boston Museum of Fine Arts, Houston, The Museum of Modern Art, New York National Army Museum, London National Gallery of Art, Washington D.C. National Gallery of Australia National Gallery of Scotland National Gallery of Victoria, Australia National Gallery, London, England National Gallery, Oslo, Norway National Museum of Wales, England National Museum of Women in the Arts, Washington D.C. National Museums & Galleries on Merseyside, U.K. National Portrait Gallery Nationalmuseum, Stockholm Nelson-Atkins Museum, Kansas New Britain Museum of American Art, Connecticut Newark Museum, New Jersey North Carolina Museum of Art Osterreichische Galerie Belvedere, Vienna Palm Springs Desert Museum Pennsylvania Academy of the Fine Arts, Philadelphia Philadelphia Museum of Art Phillips Collection, Washington D.C. Pinacoteca di Brera, Milan Prado Museum, Madrid, Spain Pushkin Museum of Fine Art, Moscow Rhode Island School of Design Museum of Art Rijksmuseum, Amsterdam Russell-Cotes Art Gallery and Museum, Bournemouth, UK Salvador Dali Museum, St. Petersburg, Florida San Diego Museum of Art San Francisco Museum of Modern Art Santa Barbara Museum of Art Santa Maria del Popolo, Rome, Italy Santa Maria delle Grazie, Italy Sheldon Memorial Art Gallery, Lincoln, Nebraska Smithsonian American Art Museum, Washington D.C. Smithsonian Institution, Washington, D.C. Sompo Japan Museum of Art, Tokyo Southampton City Art Gallery, England Springfield Museum of Art St. Pierre at Louvain, Belgium Staatliche Kunstsammlungen, Dresden, Germany Staatsgalerie Stuttgart, Stuttgart, Germany Tate Gallery, London Tel Aviv Museum of Art Terra Museum of American Art, Chicago Timken Museum of Art, San Diego Toledo Museum of Art Trinity College, Dublin Van Gogh Museum, Amsterdam Vatican Museums Victoria and Albert Museum, London, England Villa della Farnesina, Italy Virginia Museum of Fine Arts Wadsworth Atheneum, Connecticut Walker Art Gallery, Liverpool Wallace Collection, London Wallraf-Richartz Museum, Germany Walters Art Gallery, Baltimore, Maryland Whitney Museum of American Art, New York Yale Center for British Art, New Haven Yale University Art Gallery, New Haven