The French leader's hat sits in a glass case at the oldest restaurant in Paris.

This stone angel is one of the biggest caryatids in all of Paris.

A haunting museum chronicling the bloodiest battlefield of World War I.

A cocktail lounge decorated like an American dive bar, in honor of the legendary author Ernest Hemingway.

Hilltop garden on the site of an old fortress overlooking the Mediterranean Sea.

A large portion of this navigable canal runs under Paris's famed boulevards.

A lush vertical garden blooming in the heart of Paris.

The largest Commonwealth memorial to the missing and dead of the Battle of the Somme.

One of the best-preserved pieces of DDR propaganda in Berlin.

Lines on the pillar of Heidelberg's Karl-Theodor Bridge record the dramatic heights of past floods.

In this German city center, the streets have no names.

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

A unique bridge with an equally unique view.

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

This tribute to the 16th-century composer is now an unusual shrine to Michael Jackson.

It's good luck to be mocked by this monkey.

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

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

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

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

The official atomic museum of the United States explores the explosive and productive history of a much maligned energy source.

The first Protestant church in Arizona and only Gothic Revival style adobe church in the world.