This magnificent museum claims to house the cranium of a disciple and the skull of a pope.

A historic fire call point.

The original burial place of this preeminent 18th-century Jewish philosopher was razed by the Nazis.

The 1852 novel "Uncle Tom's Cabin" lends its name to a subway station, a street, and several shops on the edge of Berlin.

This monumental work of art symbolizes the coming together of a previously divided city.

One of the oldest cemeteries in Germany was originally used for victims of a cholera epidemic.

A portable, wooden replica (minus the hyphen) of Hamburg’s iconic crooked coffee shop.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

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

The fairy tale castle of the "fairy-tale king."

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

A cheeky architectural easter egg.

A sculpture of the iconic East German car on four legs is a tribute to those who traveled to Prague seeking asylum.

Dedicated to the unsung history of human waste.

An Orwellian sculpture with eyeball cameras watches passersby.

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

A mocking tribute to the past and modern leadership of Prague.

A church of bones, decorated with 40,000 human skeletons.