City Hall in London is the headquarters of the Greater London Authority and the Mayor of London. It stands on the south bank of the River Thames, in the More London development by Tower Bridge. Designed by Norman Foster, it opened in July 2002.
City Hall is the original southern terminal of the first line of the New York City Subway, built by the Interborough Rapid Transit Company (IRT), named the "Manhattan Main Line", and now part of the IRT Lexington Avenue Line. Opened on October 27, 1904, this station underneath the public area in front of City Hall was designed to be the showpiece of the new subway. The station is unusually elegant in architectural style, and is unique among the original IRT stations.