A contemporary art installation housed within a Gothic cathedral.

The highest point of this Balearic island is home to a historic monastery.

This amazing cathedral was built on the site of the first Marian shrine in Spain and is important to Spanish speakers the world over

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

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

A magnificent place to see authentic paleolithic cave paintings that are an astounding 33,000 years old.

Elaborate tile work in this railway station tells the story of Portugal.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

This castle has links to Portugal’s founding and struggles for independence.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

Eat the ultimate iteration of Portugal's most beloved pastry.

This black church sits alone among a field of lava rock.

This former farm In northern Iceland is now a museum, where visitors can tour beautifully-preserved turf houses.

This elegant arc of a waterfall marks a religious turning point.

These ominous lava formations were said to be an entrance to the netherworld so of course they inspired a famous metal band.

In Northeastern Iceland lies something of an oxymoron: a steaming desert.

A sulfuric martian landscape that looks far better than it smells.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

This tumultuous Icelandic lava field looks so alien European researchers want to use it as a stand-in for Mars.

The most powerful waterfall in all of Europe.

A giant red chair bolted to a rock on a remote mossy hillside in Iceland.

This replica Viking village was created for a film that was never shot and is now open to visitors.

Iceland's largest lagoon is home to stunning multi-colored icebergs.