A museum dedicated to the classic Italian scooter in the heart of Serbia.

Old cabin-like homes in a rural community untouched by time are known for their vibrant and colorful window shutters.

A tree planted by Marie Curie is treasured by the Radium institute that she set up.

The traditional Polish croissant, folded 81 times into the shape of a horseshoe, is a legally protected cultural treat.

A huge wooden clock that is so beautiful its creator was forcibly blinded.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

Naturally formed rock city in Poland.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

This man-made mound monument was built out of soil from all across the Polish empire.

The last municipal pneumatic post system in the world was in operation for over 100 years, and may run again.

The world's first clock to use set theory as a measure of time required the invention of a new light bulb just to maintain its obtuse measurements.

Art and a pun, all in one.

A 90-ton, gravity-defiant steam locomotive shoots for the skies in this bizarrely beautiful public artwork.

Order “Proletariat’s Cutlet” at this communist-themed restaurant allegedly once visited by Lenin.

A statue honors the children who fought Nazis in Poland.

This fairytale inspired, warped building houses restaurants, shops, and a radio station.

Once a giant gingerbread factory, this space now hosts exhibits and workshops on the historic treat.

What was once an underground Nazi city is now Europe's largest bat reserve.

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.