Discover London’s highlights by bus, boat and foot on this comprehensive half-day tour. Sitting comfortably aboard an iconic Routemaster bus, travel along the capital’s streets and see sights such as Big Ben and Trafalgar Square. Then, hop aboard a Thames River cruise boat to admire London’s famous skyline from the water. Cap your tour with a visit to Buckingham Palace. With a prebooked ticket, enjoy an audio tour of Queen Elizabeth II’s lavish state rooms, an experience only available to the public for two months out of the entire year.Special Exhibition for 2019: Queen Victoria's Palace:To celebrate the 200th anniversary of Queen Victoria’s birth, a special exhibition, Queen Victoria’s Palace, will tell the story of how the young queen transformed Buckingham Palace from a private house into a working royal residence.