Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

Step inside Lucy, the world's largest "elephant."

The stone sculpture of an Ottoman soldier is an homage to a lost Providence landmark.

This 3,500 pound obelisk was constructed with more than 1,000 reclaimed guns.

After the queen of Spain had a dream where these statues fell and crushed her, they were removed from the palace and given new homes around Madrid.

This engraved safety pin has possible links to the haberdasheries located in this humble square

Mini version of the massive Isabella head

The writer's study, a “portable museum,” is on display at the Museum of Contemporary Art in Madrid.

At this century-old barbershop, clients used to be entertained with a glass of brandy and a cigar.

This historic fountain is a favorite neighborhood meeting point.

The oldest building in Madrid.

The remains of this misplaced church were moved here stone by stone.

A haven for book enthusiasts across the street from Retiro Park.

Automatons that were once removed after one fell from the building.

Known as the Casa de las Siete Chimeneas, this haunted 16th-century manor has a dark, mysterious past.

Part of the medieval watchtower is displayed in an otherwise ordinary parking garage.

Inside this church are the alleged remains of the patron saint of lovers, epileptics, and beekeepers.

The remains of the second-oldest zoo in Europe can be seen within these library gardens.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

These "mermaids" that surround a plaza in Segovia are rather sphinx-like.

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

Spain's largest bullring offers a unique glimpse at architecture and history.

The final resting place of the great navigator, or maybe his brother.