Mansion House, London the columned "Egyptian Hall", was so named because Dance used an arrangement of columns deemed to be "Egyptian" by Vitruvius. No Egyptian motifs were employed. It has twenty niches for sculpture. There was originally an open courtyard, later occupied by a saloon. The residence used to have its own court of law, since the Lord Mayor is the chief magistrate of the City while in office. There were eleven holding cells (ten for men and one, nicknamed "the birdcage", for women). A famous prisoner here was the early 20th-century suffragette women's rights campaigner Sylvia Pankhurst. Mansion House is home to
Prime Minister's Official Residence (Japan) the former official residence: Prime Minister's Official Residence (Japan) The Prime Minister's Official Residence is the principal workplace and residence of the Prime Minister of Japan. It is commonly referred to as , or simply . Located at 2-3-1 Nagata-chō, Chiyoda-ku, Tokyo 100-8968, it is diagonally adjacent to the National Diet Building. The new residence went into service in April 2002 and replaced the former residence, built in 1929. The former residence is now known as the , the official Prime Minister's Residential Quarters. The term "Kantei" is used as a metonym for the office of the Prime Minister of