This semi-secret storybook hedge maze is also the oldest garden in the city.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

The remains of the second-oldest zoo in Europe can be seen within these library gardens.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

Commonly acknowledged as the only public monument to the Devil himself.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

A lush indoor jungle fills this bustling Madrid transportation hub.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

An ancient Egyptian temple in the middle of Madrid, Spain.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

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

This museum dedicated to divination also honors a local 10th-century prophetess.

Puffin enthusiasts flock to Europe's largest seabird cliff, which over one million birds call home.

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

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

Three million year old fossils are exposed for all to see on this Icelandic shore.

An isolated, rusty phone booth commemorates Iceland's first international telegraph cable.

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

Three columns of volcanic rock shoot out of the ocean.

A stratovolcano located in the south of Iceland, with a long history of charted activity and a rich mythology attached.

This fairytale-like structure is the last turf church ever constructed in Iceland.