The only arched bridge made of stone on the entire Mississippi River.

This taxidermic smorgasbord was co-created by an artist poached from the Museum of Natural History.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

When flour explodes, it's not a pretty sight.

20,000 pieces in a Frank Gehry-designed building.

World's largest carved onyx figure stands as a tribute to enduring peace.

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

The literary king of the Jazz Age was born in this lovely Minnesota home which still honors his legacy.

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

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

A surreal statue honoring Prague's favorite literary son.

Steadily reminding Czechia of its past.

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

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

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

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

Macabre astrological automaton clock dating to the late 1400s.

Relive a Polish uprising via an enormous, century-old cyclorama.

The silly symbol for an underground protest group is now scattered around the city.

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

The world’s narrowest house makes for an awkward, four-foot-wide living space.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.