This now-defunct synthetic fuel plant was once a major cog in the Nazi war machine.

Likely the world’s only place where you’re meant to skate on top of cars.

At one of Berlin’s oldest churches, visitors can place mosaic tiles to help restore a medieval mural.

A surreal museum of extraordinary industrial objects.

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

This watchtower once presided over the Berlin Wall.

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

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

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

Tiny memorials honor individual victims of the Holocaust.

The skeletal frame of a decommissioned gas-pumping station offers breathtaking views of greater Berlin.

Cold war icon and onetime "hole" in the iron curtain.

A monument to the man who almost killed Hitler.

These brass bunnies honor the rabbits that dominated the no-man's-land around the Berlin Wall.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

A fascinating insight into daily life in the Eastern Bloc.

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

The highest tides in the world come in and out here twice a day, allowing you to essentially walk along the ocean floor.

Go inside the house that inspired L. M. Montgomery to create one of literature's most beloved heroines.

Cape Breton landmark filled with recognizable faces.

Horse cemetery on the grounds of Blarney Castle.

Just another ancient, mysterious Irish stone circle.

An important pilgrimage site for pagans and early Christians, named for a Celtic goddess-turned-saint.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.