🇺🇸 Middlesboro, United States

Middlesboro is a small city located in the southeastern part of the United States, with a population of around 10,000 people. It is known for being the only city in the United States built within a meteor crater. Middlesboro doesn't have any ports, shipyards, or factories producing ship parts, so it may not be of significant interest to seafarers, shipowners, or crewing companies.