The Fotografiska is a definite must see for a photographer when he/she is in Stockholm. It is located in an old industrial building in Södermalm, directly at the harbour.
Fotografiska from outside
Poster from the exhibition of Sandy Skoglund
The museum has changing exhibitions from contemporary photographers not only from Scandinavia but also from around the world. There are normally two to three different exhibitions at the same time, so it should be something there for everyone. They have a big shop as well where you can buy different art or photography books but also poster or postcards with pictures of the exhibitions. Directly under the roof is a cafe and a gallery where you can buy pictures from different artist.
Not only something for rainy days.
Have a look here when you want to read more: