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.

Several cannonballs of mysterious origins decorate two buildings in Stortoget's main square.

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

This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

Sweden's oldest animated sign is still lighting up the skyline today.

A former suicide bridge is now accumulating symbols of love instead of a body count.

This Stockholm light tower can be controlled by anyone with a smartphone.

Part of an abandoned19th-century fortress hides in plain sight inside a modern office building.

Street artists transformed this abandoned industrial neighborhood into one of Europe's largest graffiti exhibitions.

An 11th-century runestone decorates the halls of Terminal 2 of this Scandinavian travel hub.

Not quite the cultural gateway between China and Sweden its designer imagined.

An early 20th-century bullring converted into a modern shopping center.

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

This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

Abandoned Coast Artillery fort now serves as graffiti canvas and sightseeing vantage point.

The only surviving fragment of the lost Narragansett Pier Casino.

The massive machine creates cracking displays of indoor lightning.

Stockholm's tiniest statue is of a small boy looking at the Moon.

A man has revenged his true love's betrayal through tears and stone genitalia.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

A menacing statue of this mythical creature can be seen at the legendary site of the monster's lair.

The stone sculpture of an Ottoman soldier is an homage to a lost Providence landmark.

Ironically this massive termite is the mascot for a company that is acclaimed for killing his kind.