A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

This London plaque marks the spot where David Bowie's famous alien made his debut.

An artistic tribute to the famous singer, just around the corner from where he was born.

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

Hear the quietest sound from across the dome.

A kaleidoscopic warehouse-maze of handmade neon signs.

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

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

An ancient Viking runestone hidden in plain view in Stockholm's old town.

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

Sweden's "good old days" painstakingly re-created in a model village.

The remains of Alfred Nobel's first nitroglycerine factory can still be found on the shores of a Swedish bay.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

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

The world's largest model of our planetary system.

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

A hidden bathhouse in one of Stockholm's oldest and busiest neighborhoods is open to anyone who can find it.

It houses the remains of a 17th-century version of the Titanic.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

Known simply as "The Hand," this famous public sculpture in Berlin was featured in a Depeche Mode music video.

A towering monument to war, located on a beautifully peaceful hill.

A traditional U-Bahn station in Berlin gets a string of rather untraditional benches.

From Iggy Pop to David Bowie to Nick Cave, this regal music studio has served some of the all time greats.