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

A Nazi concentration camp and Anne Frank's place of death.

Enter the cabin of a life-sized Hindenburg replica.

The world's oldest rose is so tough it survived being bombed in World War II.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

Bursting forth from a historic German neighborhood, these day-glo palaces are now a bright fixture in the town.

Retirement home for giant obsolete machines.

A strange rock formation with numerous legends trying to explain it.

A former ironworks that was the first UNESCO industrial site.

Goethe's "Faust" was inspired by these rock formations known as the "Devil's Pulpit" and "Witches' Altar."

A quaint Russian village in the middle of a German metropolis.

The industrial monstrosity known as Bagger 258 is a colossal mining machine built in the DDR - but now left for dead in a German field.

The prototype for all Nazi concentration camps.

A long spiraling walkway winds through the woods, and around a copper beech tree at the center.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

Terrifying derelict military hospital once housed a recuperating Hitler.

Super-heavy Nazi architectural experiment.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

This "floating railway" is one of the world's oldest monorail systems.

A striking 12th-century-style castle built on the edge of a cliff.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

Ruins of a German Castle on top of a towering stone pillar.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.