5Dubrovnik, Croatia

The UNESCO World Heritage city of Dubrovnik has seen a sharp rise in visitors, particularly after being featured in the hit TV series Game of Thrones.

The narrow streets and small population have struggled to cope with the mass of tourists arriving via cruise ships. The city has introduced measures to cap the number of cruise ship passengers and installed cameras to monitor crowds. Dubrovnik is determined to maintain its charm and history by reducing the number of visitors.