Explore London’s top 20 world famous landmarks. After a walking tour of the city, cruise down the Thames and see the sights from the river.Start with a walking tour of the history, culture, and legends of one of Europe’s best-loved cities. Head through Green Park to Buckingham Palace, watch the world-famous Changing of the Guard ceremony. Head to Westminster, and see Downing Street, Westminster Abbey, Big Ben, and the Houses of Parliament. After this popular walking tour, hop onto a cruise down the River Thames from Westminster Pier to Tower Bridge Pier (go under the London Bridge!). The sights from the river are remarkable, so enjoy them in a relaxing way to see the city.Your guide will direct you to the pier but will not board the cruise with you.