Dubrovnik lat ragusium is a city in south of croatia administrative center of dubrovnik neretva county and one of the most historic croatian tourist destinations in 1979 the city of dubrovnik joined the unesco list of world heritage sites the prosperity of the city of dubrovnik has always been based on maritime trade in the middle ages the republic of dubrovnik as the only city state on the eastern coast of the adriatic was the biggest rival of venetian republic with its wealth and ski