The 1,000-year-old Tower of London fortress has se...

The 1,000-year-old Tower of London fortress has served as a royal palace, prison, armory, execution chamber and treasury, safeguarding the 24,000 gems that make up the famous Crown Jewels, still worn by the Queen on special occasions. Tours are led by the colorfully costumed Beefeaters who thrill kids. Buy tickets online to avoid long waits; save with a three-palace Royal Pass if you re into nobility.