A small but hugely whimsical theater where marionettes play out the "The Battle of Stalingrad."

This neon lit Georgian cave claims to hold the boulder Prometheus was chained to.

A slice of central Asia in the middle of Berlin.

Abandoned railway line circling the city of Paris.

An unassuming nature trail winds through dozens of tiny houses built for the wee people.

A tree full of wishes and footwear.

A rare tour of an aristocrat's private home reveals valuable 17th-century paintings from artists like Rembrandt.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

A curious collection dedicated to human and animal anatomy and pathology.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

Museum preserving torture methods from the past.

The world's only museum devoted to the wonders of fluorescence.

Cat art as far as the eye can see.

This bridge is haunted by the ghost of a distraught mother.

A man's home is his castle.

According to local myth this cemetery is half evil spirits, half good—split down the middle.

A local prank turned town icon.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.

Quite possibly the last cross all humans will ever see.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

The trials and tribulations of marking Poe's grave.