An old department store turned Nazi prison turned artist commune.

A museum specifically dedicated to the Trabant, one of the iconic automobiles of the GDR.

A haunting contrast of trains that both saved and took the lives of Jewish children in Nazi Germany.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

This statue stands in honor of Antoine de Saint-Exupéry, the French author of 'The Little Prince' and an aviation hero.

The world's first funicular powered by a steam engine.

After decades of damage, this feat of timekeeping and automaton art has been given a new lease on life.

The world's largest frame offers spectacular views of the city's past and present.

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

Whitewashed mosque contains the world's largest carpet.

This massive piece of artwork weighs more than 250 tons, and was designed as a tribute to the first president of the United Arab Emirates.

This futuristic building is yet another architectural wonder in Dubai.

An island on the Venetian Lagoon hosts this stone chair that has nothing to do with the King of the Huns.

Stare out over the lagoon and beyond from this 10th-century campanile on the island where the city of Venice began.

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

The Argonaute submarine was the French navy's pride and joy in the 1950's.

The ruins stand as a somber reminder of France’s worst civil catastrophe of the 20th century.

This mosque was based on Sub-Saharan Islamic architecture and created for the Senegalese Tirailleurs.

This mosaic-lined medieval church was built by the world's first admiral and still holds mass in ancient Greek.

Behind medieval walls in a corner of bustling Palermo is a breathtaking former mosque once inhabited by a wolf-taming hermit.

A study of Fascist era Art Deco design in Italy.

Every inch of this chapel is covered in craftsmanship from across the world.