This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

The Natural History Museum that time forgot.

Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."

This Transylvanian church has changed its denomination four times.

On high feast days, the entire blue-glass front of this modern church opens up to reveal the small wooden church inside.

An Orthodox church inside a small "Garden of Eden" built by a man who had a vision.

The unusually large seat sits atop the base of a ruined temple.

German-style coffee and cake, just like Oma used to make it.

This airport currywurst stand is made out of retro airplane parts.

This beautiful 19th-century temple stands atop the ruins of its predecessor.

King Ludwig I's collection of beautiful women.

A subterranean display of public art and architecture.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

A fearsome dragon clings to a corner of Munich's city hall.

The footprint of a frustrated devil in Munich's Cathedral.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

The patron saint of spinsters grasps a container of dried blood.

This historic structure has been used as a mosque, a barracks, a prison, a school, and a bakery.

According to legend, this ancient column contains healing properties.

Gladiators once walked this ancient, subterranean passage.

These caves secretly held national treasures during World War II.

A sprawling collection of books and manuscripts about ancient Greece that would have put their famed libraries to shame.

This small museum once served as a royal hunting pavilion for King Otto Friedrich Ludwig.