A Gothic cathedral created from volcanic rocks.

A chapel on a volcanic core, marking the end of a successful journey.

Balconies that have a most unusual accent.

Sculpture of a legendary French dragon.

Even France's favorite aquatic son Jacques Cousteau, couldn't get to the bottom of it.

Historic medieval fortified city in southwest France.

Village situated on a narrow volcanic escarpment.

Mountain where Jesus was first tempted by the Devil.

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

Partially collapsed lava tube and cave system complete with concert hall, underground pond, and unique albino crabs.

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

A fortified city, home to a remaining population of five families

Vast stretch of tide-pools with a unique Moroccan charm.

One of the most spectacular canyons in the world.

Crumbling necropolis set high above Fez.

Mosaics, storks, and brothels—this ancient city has it all.

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

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

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

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

Famously misunderstood wonder of the ancient world

A beautifully eclectic mix of architectural styles.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.