Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

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

Metro station with a claim to rock n' roll fame.

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

Berlin's old airport.

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

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.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

The most visited, and possibly most controversial, museum in Germany.

A maze of crosses marks the jumbled divide between the Netherlands and Belgium.

The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.

A rare example of World War I trenches from the British front.

A little sculpture with a large wardrobe.

Spanning over 10,000 square miles, this ancient salt pan is one of the largest on the planet.

In Namibia there is an installation that explores the intertwined linguistics and existential beliefs of an imaginary community.

Road signs in Namibia mark the location of one of the five major circles of latitude.

Bizarre living fossil only grows in a small chunk of the Namib Desert.

This "dead marsh" sits among the largest sand dunes in the world, a forest frozen in time.

A desert that rolls right up to the ocean, where it's so dry animals live off the fog.

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

Peace Park and the Atomic Bomb Dome.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

A Buddhist temple to honor insects that died for science.