City Hall in London is the headquarters of the Greater London Authority, and stands on the south bank of the River Thames near to Tower Bridge.
The building was designed by Sir Norman Foster and opened in July 2002. It has an unusual bulbous shape, intended to reduce the building's surface area and thus improve energy efficiency. City Hall was constructed on a site formerly occupied by wharves serving the Pool of London (a stretch of the River Thames).Photo credit: ChrisO