An unusually shaped lighthouse with origins rooted in heartbreak.

This 1,300-year-old marker is one of the finest and most complete early Christian crosses in Scotland.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

Real bones which are said to have belonged to a Polish dragon.

This grubby wall is said to be one of the Earth's esoteric energy centers.

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

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

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

This 19th-century sanctuary was built atop a hill that once housed a Roman fort.

This historic timepiece was a popular meeting place for romantic rendezvous in the 1960s.

This statue stands as a message against the ills of Apartheid.

Aside from denoting a public square or market, this medieval structure was also a sign of a town's prosperity.

An abandoned, desolate train tunnel that was used during World War II.

A double cantilever system bridge that was designed to prevent flood damage.

A Scottish manor with a history of mysterious fires, magic, and eccentric tales

A roadway designed for a visiting monarch.

Andrew Carnegie funded the building of almost 3,000 libraries across the world, this was the first.

The ruins of a 15th-century church once home to priests who prayed for a single family's salvation.

A unique tribute to the millions of animals who served and died for the British military.

This mysterious and unique painting is filled with symbolism.

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

This iconic high-rise residential block was one of the last to be built in the Brutalist style.

A wonderfully eclectic Victorian aquarium lies in the basement of the Horniman Museum.

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