A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

This abandoned Croatian stronghold never saw a great deal of conflict but it is still a beloved relic nonetheless.

One of the major cities of Late Roman provinces, now in ruins of small scale.

This modern, multimedia museum takes visitors on an evolutionary journey back in time.

This Croatian fairytale castle is slowly falling apart thanks to years of neglect.

An eclectic art form practiced by untrained masters is celebrated at this museum in the heart of Zagreb's old Upper Town.

This 135-year-old weather station studied the effects of the climate on human health.

This only museum in the world dedicated solely to mushrooms.

A well-worshipped shrine to the Virgin Mary nestled inside the last of Zagreb’s historic gates.

This scale model of our solar system hid in plain sight for years before a physics team sought out all the planets.

Trimmed trees grow alongside the graves like topiary tombstones.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.