A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

The ancient tomb acts as a calendar that keeps perfect time.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The shape of this old salt factory complex was inspired by the course of the Sun.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

The world's largest reflecting pool is just two centimeters deep.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The atmospheric ruins of a historic church can be found on a hill above the city of Oviedo.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

Giant topiary dog once played a role in a terrorist bomb plot.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

This former charity hospital for elderly clergy houses some of Seville’s most treasured paintings.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

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

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

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

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

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.