The City of Brussels is the location of many national institutions. The Royal Palace, where the King of the Belgians exercises his prerogatives as head of state, is situated alongside Brussels' Park (not to be confused with the Royal Castle of Laeken, the official home of the Belgian Royal Family). The Palace of the Nation is located on the opposite side of this park, and is the seat of the Belgian Federal Parliament. The office of the Prime Minister of Belgium, colloquially called "Law Street 16" (French: , Dutch: ), is located adjacent to this building. It is also where the Council of Ministers holds its meetings. The Court of Cassation, Belgium's main court, has its seat in the Palace of Justice. Other important institutions in the City of Brussels are the Constitutional Court, the Council of State, the Court of Audit, the Royal Belgian Mint and the National Bank of Belgium.