The railway carts travelers to central Athens's highest peak, which offers stunning vistas of the city.

Two plaques commemorate the site of Shakespeare's first theatre.

This black shoreline is made up of exploded lava particles.

The last manually operated turntable ferry in the world.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

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

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Macabre astrological automaton clock dating to the late 1400s.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Baroque celebration of the end of the Great Plague of Vienna.

This bridge was constructed from the rubble of the infamous Bastille.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Notorious artist squat renovated into legal studios.

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

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

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

An effigy of Vancouver's Gastown neighorhood's namesake.

This Art Deco landmark claims to be the longest bridge over the shortest span of water in the world.

This more than a century-old cathedral has seen its fair share of redesigns over the years.

This bushy bug is one of the unsanctioned public sculptures that have survived in Regina.

This stately Victorian-era burial ground overlooking the Pacific Ocean is home to the graves of some of British Columbia's most famous figures.