Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

The famous winding walk at Chartres is surrounded in mystery and myth.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

Paris' linguistic guide to the international language of, yes, love.

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

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

Former villa and estate of James Deering developed to preserve native tropical forests.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A park with one large cat sculpture and 15 smaller ones, all painted by different Colombian artists.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

A circus legend leaves an unexpected endowment.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

Macabre astrological automaton clock dating to the late 1400s.

A beautiful and classically designed villa, with an hourly infestation of monsters.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

Huge stone depressions which may have acted as an Incan agricultural experiment.

This Peruvian canyon is filled with geometric salt pools that have been being harvested since the Incan empire.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.