20 European Cities Everyone Should Know

What are the 21 cities in Europe that received the most international visitors, pre-Covid?

Name the national capitals of Europe whose city center is less than 10km from the sea.

For each European country, name one of the five most populous cities that is NOT either the capital or the largest city.

Click the flags of countries that lie entirely on islands. But don't click any mainland countries or your experience will end abruptly.