European tourist hotspots are fighting back against rising tourist numbers in the era of cheap flights and Airbnbs. Here are some examples of steps cities have taken to combat rising visitor numbers. Dubrovnik, known for its medieval walled city, has limited cruise ship arrivals and developed an app to predict peak visitor times. The Spanish city of Barcelona is also cracking down on illegal Airbnb rentals. Meanwhile, Venice has banned large cruise ships from Venice Lagoon over concerns about their environmental impact on the city. And in March 2023, Amsterdam launched an online campaign aimed at discouraging young British men from traveling to Amsterdam. It is hoped that these efforts will also help preserve the cultural heritage of each city.