Cesky KrumlovFlickr / Adam PolselliČeský Krumlov, Czech Republic.
Travel isn't cheap.
But it usually makes for an experience that exposes you to something new and leaves an impression for years after.
I was lucky enough to live in Zurich, Switzerland, for five years when I was younger. Because of its central location in Europe, Zurich made it easy to explore the rest of the continent.
The traveling that my family did while living abroad was definitely an investment, but it was a worthwhile investment. Those travels make up most of my favorite memories from those five years.
I've rounded up 15 places in Europe I think are must-sees. This is by no means a comprehensive list, just a starting point based on my personal experience.