Stockholm is the seat of the Swedish government and most of its agencies, including the highest courts in the judiciary, and the official residencies of the Swedish monarch and the Prime Minister. The government has its seat in the Rosenbad building, the Riksdag (Swedish parliament) is seated in the Parliament House, and the Prime Minister's residence is adjacent at Sager House. Stockholm Palace is the official residence and principal workplace of the Swedish monarch, while Drottningholm Palace, a World Heritage Site on the outskirts of Stockholm, serves as the Royal Family's private residence.