Westminster is an area of central London within the City of Westminster, part of the West End, on the north bank of the River Thames. Westminster's concentration of visitor attractions and historic landmarks, one of the highest in London, includes the Palace of Westminster, Buckingham Palace, Westminster Abbey and Westminster Cathedral. Historically the area lay within St Margaret's parish, City & Liberty of Westminster, Middlesex. The name describes an area no more than 1 mile (1.6 km) from Westminster Abbey and the Palace of Westminster immediately to the west of the River Thames. The settlement grew up around the palace and abbey, as a service area for them. The need for a parish church, St Margaret's Westminster for the servants of the palace and of the abbey who could not worship there indicates that it had a population as large as that of a small village. It became larger and in the Georgian period became connected through urban ribbon development with the City along the Strand. It did not become a viable local government unit created as a civil parish.