This site houses virtual tours and artwork from some of the world's best museums. Photos are of very high quality and the website allows you to zoom in to unprecedented magnification. It comprises of approximately 17 gigapixel images and around 7000 megapixel images. This comprises of the 17 world famous museums with its inner street view. Google offers the internal galleries of the museum by the familiar street view tricycles application. An estimate of 1,061 artworks may be available on the newly launched web portal.
TED Talks: Explanation of the Google Art Project and its development.
Amit Sood: Building a museum of museums on the web (5 minute video)