Which London bridge is nearest to the Westminster Millennium Pier and Big Ben?
Westminster Millennium Pier:  It is located next to Westminster Bridge on the north bank of the Thames, and is close to one of London's most promininent landmarks, Big Ben. Big Ben: Big Ben is the nickname for the Great Bell of the clock at the north end of the Palace of Westminster in London and is usually extended to refer to both the clock and the clock tower as well.
Westminster Bridge