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

This amazing medieval fortress stands atop a promontory along the famous Cinque Terre.

A lover's walk between hilltop towns, decorated with graffiti love notes.

Since the 1960s, this small village has invited painters to decorate its walls.

This giant sculpture made of trash is a critique of society's wastefulness.

Hidden beneath a beautiful overlook you’ll find the history of the city depicted in comic strip format next to a pay toilet.

The corpse bride of Portugal.

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

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

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

Eighteen mummies have stood guard behind the altar of this tiny church since 1833.

This domed temple was built in a hidden cave mouth as a refuge for sinners seeking absolution.

Time has been frozen at this station since the bombing in 1980—or so it was believed.

An extraordinary collection of 18th century anatomical waxworks.

This sword isn't waiting for a king to pull it out. It was placed there by a saint.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

Nestled in the hills of Tuscany are gorgeous, multicolored hot springs.

The graveyard is filled with beautiful funerary art and boasts breathtaking views of Florence.

A local student's chance encounter with Keith Haring led to the creation of one of Europe's largest murals.

This Renaissance palace features a unique architectural design and is now home to the Ferrara National Art Gallery.

The Swedish flag over this small naval fort signals that the nation is at peace.

Stockholm's narrowest alley is barely over two feet wide.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

This enormous monument is one of the most iconic structures in Tokyo, rudely nicknamed "The Golden Turd."