A digital art gallery regarding expressions of clinician well-being can be found here
Virtual tours of the Solomon R. Guggenheim Museum and Foundation using Google can be found here.
Hoekten Internal is a journal of medical humanities with online resources ranging from art and history to ethics and anthropology.
Google has a feature which allows you to look at and learn about art around the world.
The Frick Collection is a New York museum internationally recognized as a premium museum and research center with many Old Master paintings and European sculptures which now has virtual exhibits. If you ever wanted to walk around an European museum, this is a great intro with many different artists and styles.