Westminsteris an area ofcentral Londonwithin theCity of Westminsteron the north bank of theRiver Thames. Westminster's concentration of visitor attractions and historic landmarks, one of the highest inLondon, includes thePalace of Westminster,Buckingham Palace,Westminster AbbeyandWestminster Cathedral.
Westminster is a city in its own right, the twin to the ancientCity of Londonfurther east and historically they jointly formed the focus of what is today regarded as London. The Palace of Westminster came to be the principal royal residence after the Norman Conquest of England in 1066, and later housed the developing Parliament and law courts of England