The remains of diamond fever taken over by the desert.

These ornate arches show how the course of the River Thames has changed.

A quartet of tiled art pieces adorn the floors of this prestigious art museum.

Originally built to monitor fishing, this Victorian tower now educates visitors about the local salmon industry.

A World War II evacuation tunnel turned into a history display of Croatian state and people.

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

Despite the name, this 16th-century structure in Galway wasn't built by the Spanish.

A gallery specifically dedicated to the botanical illustrations of a remarkable traveling lady.

Turntable anonymously received orphans, alms, and groceries.

A lush indoor jungle fills this bustling Madrid transportation hub.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

This old KLM airplane cut into three parts was transformed into an eclectic airport gift shop.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

"The prettiest love letters in the world" ... or so said Lord Byron.

This poignant art installation raises awareness of violence against women.

Though they've since been renamed, these two streets hint at Dublin's darker days.

This statue celebrating everyday life in Dublin has a few unsavory nicknames.

This supermarket offers shoppers a window into the past alongside their groceries.

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

An enigmatic monument to the Irish revolutionary who plotted an uprising against British rule.

This courtly monument celebrates an influential comedian who turned taking the piss out of the powers-that-be into an art.

This ancient Irish tower could easily have stood in for Rapunzel's prison.