The Royal Palace of Stockholm was built in the 13th century and is one of the largest in Europe. It is almost exactly the same as before. Located on the edge of Gamla Stan, it is the official residence of the Swedish royal family, and the seat of the royal court. And while you can't tour the entire palace, there are a few places available for visitors, and they are definitely worth a visit. This includes the treasury, the royal apartments, and the warehouse. One of the most important parts to visit is the basement, where you can see the royal carriages, some of which are several centuries old.