Castello Sforzesco is a museum complex in Milan, which is well worth visiting. The castle is gorgeous and there are a few museums to see too. The entry fee is only €5 per person for all the museums, so it’s incredibly cheap. I would suggest allowing for a day to visit the museum, considering that you will want to have a lunch break and stop a couple of times for refreshments too. The museums are diverse, ranging from archaeology to musical instruments.
Due to the lack of time, I will not get into details on each picture featured, but I would be happy to answer any questions in the comments. Enjoy the pictures from the castle and museums.