A fantastic place to see murals, and an important location in the history of Toronto's legal street art scene.

Constructed by forced laborers, this submarine pen is now a museum and war memorial.

Albert Einstein's head sticks out of a snail shell stacked on a rocket in this truly bizarre monument to the scientist.

Walk inside a half mile long crevice right outside the town of Garmisch Partenkirchen.

A modern museum dedicated to the fairytales and dictionary work of the Brothers Grimm.

Horrifically creative torture devices and shame punishments line the walls of this chilling museum.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

One of the oldest wine cellars in Germany is now a restaurant beneath Bremen's town hall.

A spitting ode to a German serial killer.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

The jaw of one of humankind's earliest ancestors on display at an overlooked geology museum.

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

Residing along a busy thoroughfare, this sculpture urges passersby to consider the future.

A collection of artworks exclusively created by the mentally ill that was almost burned by Nazi culture police.

A preserved college lock-up that recalls a clubhouse approach to discipline.

Most powerful transmitter in Germany only broadcasts in the French language.

A university observatory dome painted to resemble the beloved 'Star Wars' droid.

A former ironworks that was the first UNESCO industrial site.

Germany has its very own Centralia, whose spark remains attributed to "spontaneous combustion."

This rock resembling a turned-up boot has become the symbol of St. Ingbert.

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

The site where hundreds of Greeks were tortured by the Nazi secret police is now a cosmetics store.