The days when the sun never set on the British empire are long gone. But Britain retains 14 “Overseas Territories”, spread around the world from the Pacific to the South Atlantic. With the exception of the British Antarctic Territory, a wedge of wilderness populated by a few scientists and many penguins, they are tiny specks. The Pitcairn Islands, which lie roughly half way between New Zealand and Peru, are home to about 50 people; Bermuda, the most populous of the Territories, has only about 65,000 residents. Many, including Gibraltar, have been home to Royal Navy bases. These days they are more likely to earn their keep through tourism and offshore finance.