Watch cheese-flipping robots in action at this factory and museum.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Roughly 17 million letters to Santa have found their way to this Arctic Circle post office.

If you visit Santa's village, you can get your passport stamped to show you crossed into the Arctic Circle.

A stone marker and sculpture in the city of Riga stake a claim for the very first community Christmas tree.

The reconstruction of this prominent building fulfilled a long-written command.

3,000 market stands in five former Zeppelin hangars.

The oldest housing complex in Riga is a mini timeline of architectural trends.

Flamboyant architecture from the turn of 20th century.

A map store filled with original Cold War era Russian maps of the world.

A former Latvian headquarters of the brutal KGB secret police is now open as a grim reminder of their atrocities.

A black cat protests the City Guild in Riga's Old Town.

A surreal statue honoring Prague's favorite literary son.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

This automated sculpture of two men peeing will spell out text messages with their micturition.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

Macabre astrological automaton clock dating to the late 1400s.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

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

An enormous and lavish Gothic church in Czechia.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.