Unusual Post offices in the World

Hell Post Office
Grand Cayman, Cayman Islands, British Overseas Territory

Hell is a group of short, black, limestone formations located in Grand Cayman, Cayman Islands. It is roughly the size of half a football field. Here's a post office you can visit to prove you've been to Hell and back. Located at Hell, in Grand Cayman, Cayman Islands, visitors can send postcards stamped with "Postcards from Hell."