London (Things to do - Places to Visit) - LONDON Top Tourist Placesbr The capital of the United Kingdombr London, the capital of England and the United Kingdom, is a 21st-century city with a history stretching back to Roman times. At its center stand the imposing Houses of Parliament, the iconic ‘Big Ben’ clock tower and Westminster Abbey, site of British monarch coronations. br br Across the Thames River, the London Eye observation wheel provides panoramic views of the South Bank cultural complex and the entire city.