6Cinque Terre, Italy

The five picturesque villages of Cinque Terre are known for their colorful houses perched on cliffs overlooking the Mediterranean Sea.

While this region has long been a popular destination, the small towns have been overwhelmed by the sheer number of visitors in recent years. The local government has imposed limits on the number of tourists allowed to hike between the villages each day and is considering introducing ticketing systems for entry. Cinque Terre wants to preserve its natural beauty and traditional way of life.