There is this really fun place called the Camera Obscura, right by the castle. It's a periscope built in 1851, on top of this old building that was also very tall. You basically go into the dark room, and they project what the periscope sees onto this wooden table, and you can look at all of the parts of the city. This is a view from the balcony, outside the periscope room. The view of the city is beautiful.
