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

An artificial date palm stands as a memorial to Warsaw's Jewish community.

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

Special benches that play Chopin's music are scattered throughout his native city.

In the summer, the area around this sculpture transforms into a vibrant concert venue.

This extensive collection covers thousands of years of Polish military history.

Extremely famous in his native country, this Cracovian painter is all but unknown beyond Polish borders.

People in Poland have rallied to save this unnatural desert from being reclaimed by the forest.

The inscribed stone at Kilnasaggart is a remnant from nearly a millennium ago.

At 1,732 feet above sea level, this spectacularly isolated yet surprisingly bustling bar is the highest pub in Britain.

This quaint funicular has been ferrying people up and down an English valley since the Victorian era.

A seaside town with no sea in sight.

Despite its ornamental looks, this towering Tuscan-inspired anomaly was a masterpiece in hydraulic engineering.

On the eve of a condemned prisoner's death, this bell rang 12 times outside their cell.

The oldest of the three remaining bridges in England with buildings on top of them.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

These 90-year-old murals of local kings, Vikings, and outlaws hide in plain sight in a beautifully baroque shopping arcade.

Exquisite carvings of leaves, Green Men, and the occasional dragon adorn a medieval chapter house.

A curious urban windmill once owned by a renowned British mathematical physicist.

The Birthplace of the Englishman who founded the A.C. Milan football club.

One of the highest Roman forts in Britain is set amid dramatic scenery on a notoriously difficult road.

This beautiful deer park was built so King Charles I and his court could go hunting while escaping a deadly plague outbreak.

This Welsh hotel is the spiritual home of the British 1953 Everest expedition, the first successful ascent of Mount Everest.

A winding medieval path was used by mourners to carry their dead to the nearest church.