A hidden three-foot-wide house separates these two regal churches.

Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

One of the largest Roman settlements in Portugal.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Iceland's largest geothermal mud pool is a little bit haunted and a little bit dangerous.

This beautiful, historic church looks like something out of a simpler past.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

The largest whale museum in Europe allows visitors to walk among life-size giants.

The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Three columns of volcanic rock shoot out of the ocean.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

Dead weights honor the dead of Portugal's fishing industry.

The stunning interior of this Gothic church is covered in ornate gold details.

A vintage video game wonderland in downtown Reykjavik.

These enlarged egg sculptures represent the native birds of eastern Iceland.

Icelandic folklore says this giant boulder was ripped from the mountains and placed at its current location, where it became home to elves.

A giant concrete orb in far north Iceland marks the ever-shifting boundary.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

Iceland's only steampunk shop imagines a retro-futuristic world that never was.

Eerie ruins of an abandoned medieval fishing village crumble atop an unforgiving stretch of earth.

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

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

This oddly shaped church resembles a rocket.