Hallwyl House (Swedish: Hallwylska palatset) was built 1893–1898 to the design of Isak Gustaf Clason for Count Walther von Hallwyl and his wife, Wilhelmina. It was created to accommodate the office of the count and the extensive art collection of the countess. Wilhelmina and Walther von Hallwyl also lived there during the winter. While the exterior of the building and the court is historical in style — borrowing architectural elements from medieval prototypes and Renaissance Venice — it was utterly modern on its completion — including electricity, central heating, telephones, and bathrooms. The elevator was a later addition. The countess collected her artworks during her worldwide journeys in order to found a museum, and, consequently, the palace was donated to the Swedish State in 1920, a decade before her death. The museum, including many of the rooms where they used to live, is open to the public, and the Hallwyl Collection which is housed there encompasses some 50,000 objects.