A giant floating rubber duck-bunny painted with a different design every year.

This fountain was designed to honor the man who helped bring water to Barcelona.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

Occupied for six centuries by Franciscan Order nuns, this monastery is an amazing ode to Catalán Gothic architecture.

This site is both a remarkable reminder of the town's mining history and a fantastic government blooper.

The extensive relics of an ancient Roman and Phoenician fish processing plant hide in a town park.

This ancient tunnel is one of the most important examples of Roman hydraulic engineering in Spain.

An arresting arch punched straight through a mountain provides one of the most scenic spots, and challenging climbs, on the planet.

This local emblem is the oldest and largest dragon tree in the Canary Islands.

Two towns are linked by an engineering marvel masquerading as a boring suspension bridge.

A neighborhood park in the city of Cáceres hides what some believe are revolutionary examples of Neanderthal cave art.

Madrid's last horchata kiosk is a blue-and-white beacon of refreshment.

A gravity-defying "devil's bridge" that has a surprising architectural feature for its stability.

One of Europe's largest supercomputers is housed inside of a disused chapel.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

Avant garde house of Pierre Cardin on the Cote d’Azur.

Sky ships, planes, and portraits left as unique tokens of hope and thankfulness.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

This massive library holds what was once the largest book collection in the world.

Abandoned railway line circling the city of Paris.

A maze of crosses marks the jumbled divide between the Netherlands and Belgium.

A rare example of World War I trenches from the British front.

Potato-peeling mannequins, Inca art, and a dangling tuber mobile help trace the history of fries at this Belgian museum.