The history of German architecture is explored across this fairy-scale mini-city.

Living trees form the structure of an open-air palace.

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

This proud Teutonic warrior rises out of a German forest heralding a victory and measuring lightning.

This uber-quaint Polish village is known for its habit of painting elaborate floral motifs on just about everything.

According to a satirical conspiracy theory that persists today, this German city of 300,000 is a hoax invented by the CIA.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

Bohemian paradise covered in majestic forests.

Naturally formed rock city in Poland.

An intricate and amazing house built by architect Karl Junker.

One of the largest amphitheaters in Europe is a former Nazi gathering place that still stands today.

An unusual bronze bus shelter is actually an art installation commenting on the city's history with the Nazi party.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

A mysterious structure left behind on the Polish mountainside, sometimes called "Hitler's Stonehenge".

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

To the great disappointment of doomsdayers, this codex merely contains records of the Moon and Venus.

An exquisite panometer representing Dresden as it was from 1695 to 1760.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

Slaughterhouse Five opens its dank doors to fans of Kurt Vonnegut.

When the rain falls, this drain system turns into a musical instrument.

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

This mysterious and once-grand memorial still embodies a remarkable architectural vision.

On the highest peak in the Harz Mountains, science and the occult faced off in a failed attempt to turn a goat into a boy.

Secret Soviet city once home to Russian cosmonauts and space training facilities.