Start your day by visiting Buckingham Palace, the official residence of the British monarch. If you're lucky, you might even catch the Changing of the Guard ceremony. Next, head to the nearby Westminster Abbey, a historic church where many British monarchs have been crowned and buried. Afterward, take a stroll through Hyde Park, one of London's largest and most beautiful parks. End your day by visiting the luxurious Harrods department store, where you can shop for high-end fashion, food, and souvenirs.