A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

This unassuming bookstore in the heart of Madrid is one of the oldest in Spain.

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.

An ancient Egyptian temple in the middle of Madrid, Spain.

Along the pavement of this neighborhood in Madrid are quotes from famous authors.

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

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Commonly acknowledged as the only public monument to the Devil himself.

The lengthy skeleton of one of the tallest Spaniards of all time is on display in Madrid.

A lush indoor jungle fills this bustling Madrid transportation hub.

A pair of gigantic baby heads greet passengers at Atocha Station.

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

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

A daily pyrotechnic celebration marks a beloved tradition during Valencia's festival season.

The world's largest sundial can cast a shadow more than 1,600 feet long.

A statue of a boy looks up at where the famous rival to the Leaning Tower of Pisa once stood.

These rose marble urinals are the most luxurious loos in Liverpool.

Gutted during the Liverpool Blitz, this architectural husk has been left destroyed in honor of the dead.

A memorial to the politician who became Great Britain's first fatality to be caused by a locomotive.

This whimsical public art installation is a unique homage to Liverpool's industrial heritage.

The red letters in the literary pavement leading to the library form a mysterious code.

This bronze statue was dedicated to a 1966 Beatles hit.