Many of the nation’s and the world’s great museums offer virtual tours of their collections via their website or the Google Art Project. Here are links to some of them.
Museums in the U.S.A.
Massachusett Museum of Contemporary Art
Museum of Modern Art (MoMA. NYC)
Whitney Museum of American Art
Smithsonian National Museum of Natural History
Smithsonian National Portrait Gallery
National Museum of African American History and Culture
National Museum of the American Indian
The Metropolitan Museum of Art
Museums from around The World