The world, in perspective.

One of the most famous addresses in the world, 10 Downing Street in London, is home not just to prime ministers, but also to a 19-year-old tabby cat named Larry. Correspondent Holly Williams looks at how the official pet of the British leader's residence and Chief Mouser to the Cabinet Office has become a favorite of the press – and a political fixture whose

The building has been described as a "gloomy, mice-infested, bomb-curtained rabbit warren".