The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

A monument to the man who almost killed Hitler.

Tiny memorials honor individual victims of the Holocaust.

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

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

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

A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

The site where a plot to assassinate Hitler was planned—and its conspirators were executed—is now a powerful memorial to the German resistance during World War II.

After a nearly successful attempt on Hitler's life, the conspirators met their fate in the courtyard of this Berlin building.

Super-heavy Nazi architectural experiment.

A poignant mural honors the heroic teenage non-conformists who took on the Nazis and paid the ultimate price.

A wunderkammer of mysterious objects and stories.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

The largest mosque in Germany.

A 12th-century fortress containing some of Berlin's oldest buildings.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

This platform is now a memorial dedicated to those who were deported during the Holocaust.

The monumental home of Prussia’s eccentric "Cannon King."

A stunning gilt bronze relief denounced by Hitler as "degenerate art"—even though it was dedicated to the Nazi leader.

A spitting ode to a German serial killer.

The ruined remains of the airport Claus von Stauffenberg departed in his failed attempt to kill Adolf Hitler.

This 18th-century folly is one of Europe's rare "garden mosques."

This temple to the sturm and drang of Richard Wagner contains a dragon's cave and reptile zoo full of living "dragons."