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

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

In this quiet village, a blue plaque marks the spot where the famous fictional detective retired.

A subterranean playground in an abandoned slate mine.

An abandoned quarrying village turned commune is now a hub for learning the Welsh language.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

Beggars were miraculously "cured" of their fake ailments when they returned home to this 17th century Paris slum each night.

A former hen house turned curiosity cabinet displays one man's lifelong fascination with cannibalism.

Catering to broken dolls for almost 200 years, this repair shop is now a charnel house of doll parts.

One of the smallest bookstores on the planet.

This unique architectural wonder is also tied to one of the 20th-century's most renowned writers.

Sip cherry liqueur at a bar dating back to 1840.

Eat the ultimate iteration of Portugal's most beloved pastry.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

A centuries-old copper mine that once provided two thirds of the world's copper supply.

Thousands of miniature bronze sculptures have taken over this city square creating a unique art installation.

An artist's mausoleum with a haunting echo.

In downtown Oslo, a menacing and terrifying relief clings to a church wall.

This floating sculpture of ice is a poignant reminder of nature's power.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

The design of this beautifully crafted building was inspired by Norwegian glaciers.