Of course, when in London, a visit to Buckingham Palace is a must. Did you know you can actually explore the interior of the palace? During summer, when the Royal Family resides in one of their other homes, the palace is open to the public (tip: for more specific information check out the official website of Buckingham Palace). From the history of the Royal Family, the quintessential English garden to captivating paintings from renowned artists like Rembrandt, the audio guide, available in many different languages, guarantees a fascinating tour. Pro tip: book the tickets in advance to avoid waiting in long queues and to make the most of this royal experience.