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

On this Polish road, an optical illusion makes cars seem to roll uphill.

Brought to you by the makers of fiberglass dinosaurs.

One of only two places in the world where two rivers cross each other without the waters mixing.

At first glance, this area seems like just another city park, but the lush landscape hides a dark past.

This biographical museum honors the groundbreaking scientist at her birthplace in Warsaw.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

This hidden collection of everyday objects illustrates life within communist Poland.

The world’s narrowest house makes for an awkward, four-foot-wide living space.

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

The unsettling remnants of a torn down movie set lies nearby the ruined location of the actual Płaszów Labor Camp.

A hidden art gallery in an abandoned Warsaw fort.

This uber-quaint Polish village is known for its habit of painting elaborate floral motifs on just about everything.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

Gliwice Radio Tower, likely the tallest wooden structure in the world.

Ruins of a late 1950s Polish ski jump ramp in the middle of the city.

A 20th-century picture show in 3-D.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

One of the largest amphitheaters in Europe is a former Nazi gathering place that still stands today.

The world's greatest slide descends 18 stories from this looping mountaintop viewing platform.

The home of the morbid art of corpse plastination is open for visitors to view the fascinating, but stomach-churning process.

Lithuania's outdoor sculpture trail of wooden folk art.

The oldest wind turbine in Europe, constructed by a group of friends in 1932.

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