Stockholm has some pretty ridiculously gorgeous real estate. If you have the money (sigh) you have any number of breathtaking apartments, villas or summer homes to choose from in many gorgeous parts of Stockholm.
This huge, insanely expensive (38 million Swedish Crowns aka 5 million dollars) 15 room apartment in the heart of Stockholm, in the Old Town (Gamla Stan) is a major dream. It has many gorgeous interior details from the 1600s, gorgeous views of Southern Stockholm, and major charm.
When I moved to Sweden I actually lived for a while in an apartment in Gamla Stan. It's a really lovely and charming area with wobbly cobble stoned streets (I destroyed all of my high heeled shoes when living here... I now wear flats) and houses from the 1600s and 1700s (and even earlier too!) The streets are winding, quirky, and full of sweet stores, restaurants and galleries. It's an amazing place to explore and live. It's even very quiet considering how many tourists there are constantly exploring the small central island. I wouldn't mind living there again one day!