The Admiralty is a pub at 66 Trafalgar Square, London. It is the only pub situated on the square. The Italianate building was built in 1871 by the architect F. W. Porter for the Union Bank.
Wikipedia https://en.wikipedia.org/wiki/Admiralty,_Trafalgar_Square
Coordinates 51°30'26.189" N -0°7'43.99" E