A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A massive mammoth bone has been on display inside this church since the 18th century.

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

A floundering Polish shipyard was once the soul of the Solidarity movement that capsized communism.

Boats must transform into railroad cars to navigate this Polish canal.

The manor house where the Polish composer spent childhood summer holidays is now a museum and concert hall.

While the U.S. and Soviet Union were engaged in a space race, Poland built a UFO on the ground.

For 200 years, people have flocked to this Polish town to experience the healing powers of salt.

This towering statue of Jesus provided internet to the surrounding area.

Cold war icon and onetime "hole" in the iron curtain.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

On a small Slovenian island, diners can mix and match a classic cake into dozens of sweet and savory flavor combinations.

This one-time health resort was used by aristocrats around the world.

A whimsical bridge adorned with decorative dragons.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

Strange rumors surround the artist who created these solemn metal guard dogs.

A public work of art that also provides some relief from the summer heat.

A relic from the Industrial Revolution got a second life as a contemporary performing arts space.

Atop this library is one of the most beautiful green spaces in Warsaw.

A hidden art gallery in an abandoned Warsaw fort.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

A mysterious shape catches the eye in this 16th-century painting.

The bronze uniforms commemorate the vital role of women during World War II.

This one has sailed five times as far as Sir Francis Drake's famous ship.