"When completed in 1898, this was one of Scandinavia’s most opulent private homes. When the owners gave it to the Swedish state in 1920, they did so on the condition that nothing be changed. The result is a fascinating look at how a wealthy Swedish family lived around the start of the 20th century. The courtyard hosts a fashionable restaurant, but inside it is just as it was when Count and Countess Walther and Wilhelmina von Hallwyl were in residence."