For Mac OS users, there is a system setting that may not allow you to tab onto several types of elements in a web page. To change this setting:
Khan Academy Art History
Khan Academy is a great educational website for many subjects, especially art. I encourage you to check them out if you are interested in art history and would rather watch videos than read text.
The Louvre Museum Paris, FranceThis is the link for the Louvre Museum in Paris.
Metropolitan Museum of Art NYCHere is the link to the Metropolitan Museum of Art.