75 under-the-radar places everyone should visit in Europe

While it's important to visit the world's biggest cities and landmarks, travel should also be about discovering the undiscovered.

Did you know there's a natural cave in Croatia that's so blue it looks fake? Or an amusement park in Copenhagen that rivals Disneyland Paris?

Probably not.

We've compiled a comprehensive list of little-known - yet spectacular - places worth visiting in Europe. 

From quiet cities and tiny villages to remote islands and natural wonders, here are our top 75:

Chloe Pantazi and Will Heilpern contributed to an earlier version of this article.