London is a city that has come close to ruling the world. With a legacy that includes Shakespeare and the Beatles, London seems to have an endless capacity to reinvent itself. Here, we sip tea and savor traditional sights such as Buckingham Palace and the Changing of the Guard. We pop in to see where Charles Dickens penned Oliver Twist, and get a bird’s-eye view of contemporary London from the new London Eye observation wheel. Finally, we check out cutting edge artwork at the newly opened Tate Modern Art Museum. Tips on using cell phones and cash machines.