7Dubrovnik, Croatia

Dubrovnik, often called the “Pearl of the Adriatic,” is a stunning coastal city that became even more famous after being featured in Game of Thrones.

While the city’s historic walls and medieval architecture attract visitors, the influx of tourists has led to overcrowding. During peak season, it’s not uncommon for the narrow streets of Dubrovnik to be packed with cruise ship passengers, making navigation difficult.

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