The Yeomen Warders of Her Majesty’s Royal Palace and Fortress the Tower of London, and Members of the Sovereign's Body Guard of the Yeoman Guard Extraordinary, popularly known as the Beefeaters, are ceremonial guardians of the Tower of London. In principle they are responsible for looking after any prisoners in the Tower and safeguarding the British crown jewels, but in practice they act as tour guides and are a tourist attraction in their own right, a point the Yeomen Warders acknowledge.