Two standing giants remain as a tribute to Luxembourg's metallurgical past.

The only remaining U-boat that is still floating never actually saw any action in World War II.

Nordic giants resurrected from the sea and restored to their former greatness.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

The 1852 novel "Uncle Tom's Cabin" lends its name to a subway station, a street, and several shops on the edge of Berlin.

A prime example of socialist modernist architecture, wrapped in a enormous fresco about the media.

A socialist building dedicated to teachers showcases one of the largest Soviet mosaics in the world.

Check the time in 145 countries at once with this East German relic.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

These mysterious circular formations are actually remnants of 19th century gristmills.

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

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

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

A 130-year-old urinal is the oldest of Stockholm and perhaps all of Sweden.

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

Malmö’s bronze prince yearns for Copenhagen's 'Little Mermaid'—and his missing crown jewels.

Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

An aluminum skeleton brings Chinese mythology to the French shore.

These red marks, seemingly placed at random, are in fact not.

On this romantic tidal island reachable only at low tide the tomb of a famous French writer overlooks the sea.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A sandstone block marks the alleged spot where the legendary writer was conceived.

Liechtenstein's royal family calls this medieval alpine castle home.

Browse through a century of this principality's first popular export.