Helsinki — Prime Minister of Finland Sager House in Stockholm — Prime Minister of Sweden (who also has a country residence, Harpsund) Grand Kremlin Palace in Moscow — Prime Minister of Russia Palace of the Governorate in Vatican City — Governorate of the Vatican City State Similarly, heads of government of federal entities below the level of the sovereign state (often without an actual head of state, at least under international law) may also be given an official residence, sometimes used as an opportunity to display aspirations of statehood: Hotel Errera in Brussels — Minister-President of the Flemish community and region Bavarian State Chancellery – Minister-President of the State of Bavaria Élysette in Namur — Minister-President of Wallonia Bute House, Edinburgh; First Minister of Scotland Hesse State Chancellery, Wiesbaden; Minister-President of the State of Hesse Kazan Kremlin, Kazan – President of Tatarstan Government House, Hong Kong – Chief Executive of Hong Kong Macau Government Headquarters – Chief Executive of Macau Red City Hall – Governing Mayor of Berlin Quinta Vigia – President of the Regional Government of Madeira Usually, the residence of the heads of government is not as prestigious and grand as that of the head of state, even if the head of state only performs ceremonial duties. Even the formal representative of the head of state, such as a governor-general, may well be housed in a grander, palace-type residence. However, this is not the case when both positions are combined into one: The White House (1600 Pennsylvania Avenue) in Washington, D.C. — President of the United States of America The Blue House (1 Sejongno Jongno-gu) in Seoul — President of South Korea Istana Nurul Iman in Bandar Seri Begawan — Sultan of Brunei Palácio da Alvorada in Brasília — President of the Federative Republic of Brazil Statistics World's longest serving unelected head of government: Prince Khalifa bin Salman Al Khalifa, Prime Minister of Bahrain from 1971 to 2020 (). World's longest serving monarchical head of government: Hun Sen, Prime Minister of Cambodia from 1998 to present (). World's longest serving republican head of government: Lee Kuan Yew, Prime Minister of Singapore from 1959 to 1990 (). World's longest serving female head of government: Sheikh Hasina, Prime Minister of Bangladesh from 1996 to 2002 and from 2009 to date (). See also Head of state Government List of current heads of state and government List of current prime ministers