This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

France's most famous cemetery, with some of its most curious tombs.

The studio built by fascists in the hopes of "reviving the film industry" with the occasional propaganda film opportunity thrown in.

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.

The yawning maw of this pagan visage is said to bite off the hands of liars.

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

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

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

A mysterious plaque to the even more mysterious "Fr. Pat Noise," killed in "suspicious circumstances."

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A multi-storied painting that depicts the area's rich and diverse maritime history.

A free public golf course hides in plain sight in the heart of Scotland’s capital.

An artistic interpretation of the history of a Scottish park, combining poetry with anthropomorphic animals.

These steps offer a breathtaking view of one of Europe's most besieged fortresses.

The dance of this huge clock is a magnificent and eerie commentary on good and evil in the history of humankind.

The colorful stairs are made with marble from the world's major quarries.

The U.K.'s first underground railway line is now a lively thoroughfare for runners and cyclists.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

Remnants of the 16th-century defensive wall still stand unassumingly within Edinburgh.

A succession of eerily contemplative iron figures lead from a Scottish museum to the sea.

This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

The most loyal of little dogs, or a Victorian era publicity stunt?