Many of these are simply beautiful sites, well worth visiting. (Listed in Alphabetical Order)

• The Acropolis Museum - Athens, Greece
• The Art Institute of Chicago - Chicago, Illinois
• Benaki Museum - Athens, Greece
• Birmingham Museum of Art - Birmingham, England
• The Bodleian Library - Oxford, England
• The British Library - London, England
• The Contemporary Art Center - Cincinatti, Ohio
• Centre Pompidou - Paris, France
• Courtauld Institute of Art - London, England
• Dallas Museum of Art - Dallas, Texas
• Denver Art Museum - Denver, Colorado
• The Detroit Institute of the Arts - Detroit, Michigan
• Deutche Guggenheim - Berlin, Germany
• Fine Arts Museums of San Francisco - San Francisco, California
• The Frick Collection - New York, New York
• The Getty - Los Angeles, California
• The Guggenheim Museum - New York, New York
• The Guggenheim Museum, Bilbao - Bilbao, Spain
• The Guggenheim Heritage Museum - Las Vegas, Nevada
• The Peggy Guggenheim Collection, - Venice, Italy
• Hayward Gallery - London, England
• The Hunterian - Glasgow, Scotland
• The Kimbell Art Museum - Fort Worth, Texas
• Kunst- und Ausstellungshalle der Bundesrepublik Deutschland GmbH - Bonn, Germany
• Kunsthistorisches Museum - Vienna, Austria
• The Louvre - Paris, France
• The Los Angeles County Museum of Art - Los Angeles, California
• The Metropolitan Museum of Art - New York, New York
• The Montreal Museum of Fine Arts - Montreal, Canada
• The Claude Monet Foundation at Giverny - Giverny, France
• Museo Nacional del Prado - Madrid, Spain
• Museum of Contemporary Art - Chicago, Illinois
• Museum of Fine Arts - Boston, Massachusetts
• The Museum of Modern Art - New York, New York
• Museum für Kunst und Gewerbe Hamburg - Hamburg, Germany
• Musée d'Orsay - Paris, France
• National Gallery of Canada - Ottawa, Canada
• The National Gallery - London, England
• National Gallery of Art - Washington DC
• National Gallery of Ireland - Dublin, Ireland
• National Galleries of Scotland - Edinburg, Scotland
• National Museum of Women in the Arts - Washington DC
• National Portrait Gallery - Washington DC
• The National Portrait Gallery - London, England
• Philadelphia Museum of Art - Philadelphia, Pennsylvania
• The Rijksmuseum - Amsterdam, The Netherlands
• Royal Academy of Arts - London, England
• The Saatchi Gallery - London, England
• Salvador Dali Museum - St Petersburg, Florida
• San Francisco Museum of Modern Art - San Francisco, California
• Seattle Art Museum - Seattle, Washington
• The State Hermitage Museum - St. Petersburg, Russia
• The Tate Britain - London, England
• The Tate Modern - London, England
• The Tate Liverpool - Liverpool, England
• The Tate St Ives - St Ives, England
• The Uffizi Gallery - Florence, Italy
• The Andy Warhol Museum - Pittsburg, Pennsylvania
• The Whitney Museum of American Art - New York, New York
• VanGogh Museum - Amsterdam, Netherlands