Hundreds of signs pointing to the birthplaces of current Helsinki residents form stalactites on the ceiling of the cave-like Kamppi metro station.

A subterranean house of worship carved right out of the bedrock.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

This church also serves as a lighthouse complete with a beacon.

These enormous, stern-faced statues greet visitors with lanterns, and sometimes costumes.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

This ten-ton fruit sculpture celebrates the Finland homeland.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

A fearsome dragon clings to a corner of Munich's city hall.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The patron saint of spinsters grasps a container of dried blood.

A book bound in the skin of an infamous criminal, along with countless other specimens.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

Hidden in plain sight, a gravestone seemingly inscribed from the future stands among the cemetery’s historic tombs.

Northern Europe’s largest castle ruins sit precariously on an island cliffside.

The only surviving piece of Copenhagen's 16th-century defensive wall.

Museum on earth sciences featuring a recreation of a famous curiosity cabinet.

Local legend says a monk brought Christianity to Bornholm through his sermons in a cave inside this free-standing rock.

Copenhagen's celebrated theme park and gardens.