The city known as the "Pearl of the Adriatic" is Dubrovnik, located in Croatia. This historic city is renowned for its stunning medieval architecture, well-preserved city walls, and scenic coastline along the Adriatic Sea. Dubrovnik played a significant role in maritime trade during the Renaissance and is a UNESCO World Heritage Site. It attracts millions of tourists each year who come to explore its rich history, beautiful streets, and vibrant culture. The city also gained popularity as a filming location for the television series "Game of Thrones," further enhancing its global appeal.