Tristan da Cunha, a remote volcanic archipelago in the South Atlantic Ocean, is part of the British Overseas Territory of Saint Helena, Ascension, and Tristan da Cunha. Discovered by Portuguese explorer Tristão da Cunha in 1506, it was settled by Britons in the early 19th century and annexed by the UK in 1816 to prevent French use during the Napoleonic Wars. Its only settlement, Edinburgh of the Seven Seas, is known as the world’s most isolated inhabited place. Fishing, especially lobster, sustains its economy. There’s no airport—access, you can get there only by a 6-day boat journey from South Africa. But then there’s that “by Air Mail” sticker : )
