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
Winfield House Winfield House Winfield House is a mansion in Regent's Park, London, England, commissioned in 1936 by American heiress Barbara Hutton. The grounds are ; the second-largest private garden in the British capital after that of Buckingham Palace. Since 1955 it has been the official residence of the United States Ambassador. The house is Grade II listed as an "exceptional ambassador's residence and as a notable Neo-Georgian town house containing numerous features of note." It is located near Quinlan Terry's Regent's Park villas. The first house on the site was Hertford Villa, the largest of the eight homes originally built in