Berlin's old airport.

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

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

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

The prototype for all Nazi concentration camps.

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

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

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

A small but immensely extravagant palace built by the "Night King."

The fairy tale castle of the "fairy-tale king."

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This splendid tomb may look fantastic, but there's nothing in it...

The beautiful, ornate weather station is the most popular geocache in Salzburg.

The solemn exterior conceals an opulent interior of this 17th century church.

This skeleton-filled altar piece served as a backdrop to one of the most iconic scenes in "The Sound of Music."

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

The world's oldest known salt mine.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

Baroque celebration of the end of the Great Plague of Vienna.

The Habsburgs' royal collections of art and wonders.

Op-art architecture designed for happiness.