Google has found a new way to use Google Earth--to explore paintings. It has taken a technology used for one thing and found another thing that it can do. Right now it has a number of famous painting from the Prado, including Bosch's Garden of Earthly Delights. Check out google.com/prado
If Google follows its usual course, it will soon have a great many famous pictures available, and will make museums as obsolete as it has made libraries.