The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

The oldest and smallest cemetery in Paris is only open to the public twice a year.

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

This modest marker near Notre Dame identifies the very center of Paris.

Originally built to monitor fishing, this Victorian tower now educates visitors about the local salmon industry.

Despite the name, this 16th-century structure in Galway wasn't built by the Spanish.

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

These distorting, funhouse mirrors achieved fame in a renowned piece of Spanish theater.

This sculpture pays homage to the street sweepers of Madrid since its inauguration in 2001 in Plaza Jacinto Benavente.

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

A must for film lovers in Madrid and home to the Spanish Film Library's projection space.

The remains of a convent turned military barrack in the heart of Madrid.

This modernist bridge highlights the bear as a symbol of Madrid.

A tunnel commissioned by ‘the Intruder King’ to escape from the palace if there were problems.

This house's itty bitty size means no humans allowed.

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

A bad omen turned symbol of good fortune now adorns a hidden palace in the quiet streets of Valencia's old town.

With a facade that measures just 107 centimeters, this five-story building is one of the skinniest in Europe.

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

Artist Natividad Sánchez wrote a new ending for one of Roman mythology's tragic love stories.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

Once a resting spot for King Fernando VII.

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

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