The Museum of Sketches
The Museum of Sketches in Lund, Sweden is a unique museum. Their goal is to display the birth of a work of art. This is really cool! They display skecthes, staute-tests etc from the process of creating great art. You can see how big artists like Milles and Matisse sketched their big artworks.
If you travel to Lund this is a must visit! http://www.adk.lu.se/en/