🇷🇴 Sarmizegetusa, Romania

Sarmizegetusa was the capital of the ancient Dacian Kingdom in modern-day Romania. It had a population of approximately 10,000 people and was a significant cultural and political center. While it does not have any ports, shipyards, or factories producing ship parts, the city's historical ruins and archaeological sites may be of interest to seafarers and shipowners with an interest in ancient civilizations.