On Friday afternoon, I went to Camera Obscura together with Sina. It is a museum of illusions. The building is in the Old Town, close to the castle, and has six floors. First, we went to the top, where you have a view of the whole city. There is a little chamber, in which a show takes place. The show is more like a tour throw Edinburgh only with a camera.
The other floors consisted of very bewildering pictures. One floor used light while another used mirrors to confuse the observer. I think that Camera Obscura is a nice place to visit.