It’s worth beginning your visit to the Tower of London, one of the capital's most famous attractions, by joining one of the free talks given by the Yeoman Warders (they’re the guys in the red uniforms, you might know them as Beefeaters). By the time they’ve finished their introduction, you’ll be an expert in all the traitors' tales, ravens and executions, and more than ready to see the Crown Jewels, Henry VIII’s armour and how the castle defended itself at times of attack.
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