The celebrated eyesore created by starry-eyed sweethearts.

Montmartre's sole surviving windmill became an iconic landmark for 19th-century painters, artists, and bohemians.

This emotive sculpture was originally created for the 1878 World's Fair.

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

This banal Parisian entranceway is not what it seems.

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

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

It houses a menagerie of wondrous taxidermy specimens from around the world, including the remains of a famous gorilla.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

A mysterious suspended hand greets unsuspecting visitors at the Tower of London.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

Third time's a charm, or in this case, two testicles are.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

Where Agatha Christie mysteriously disappeared in 1926.

A modern English garden of eccentric beasts, follies, and oddities.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

Although it appears ancient and mysterious, the quirky folly was actually built 200 years ago by an eccentric estate owner.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

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

In memory of the assassinated, now-canonized Salvadoran archbishop who is the namesake of nearby Romero Place.

This museum is dedicated to the most famous Irish writers in history.

The largest oak in England is said to have been the hideout of Robin Hood and his Merry Men.

Home to items never before seen by the public.