For centuries, travelers have gravitated to the great cities of Europe — and time has shown that the attractions of the past aren’t all too different from the attractions of the present.

The European Cities Collection by National Geographic Traveller (UK) is out now, packed with active adventures, immersive ...

Narrowing down the best cities in Europe to visit it no easy task. After all, the continent has countless beautiful places to see—from castles and estates to natural wonders and bucolic villages.