The document discusses the Palace of Westminster and Big Ben in London. The Palace of Westminster has long been the meeting place of the Houses of Parliament and was originally a royal residence until 1512. It burned down in 1834 and the current building was constructed over 30 years, designed by Charles Barry. Big Ben is the name of the large bell inside the Elizabeth Tower, formerly known as the Clock Tower, which was completed in 1859. Both landmarks are significant historic and cultural symbols of Britain's capital city and parliamentary democracy.