This former steel and coal plant is now a neon-lit industrial fantasia.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

Model Trains and Much More in Hamburg.

A striking 12th-century-style castle built on the edge of a cliff.

Goethe's "Faust" was inspired by these rock formations known as the "Devil's Pulpit" and "Witches' Altar."

The great Danube river starts here.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

Enter the cabin of a life-sized Hindenburg replica.

Housed in an old church, this hunting museum holds a collection of mythical bird-rabbit creatures.

No need to strap in for a "ride" on this walkable roller coaster.

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

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

A German apartment building hosting as many trees as human occupants.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

The oldest Jewish cemetery in Europe survived Hitler's Germany.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

This unattributed sculpture in Amsterdam is hiding in plain sight.

This basement museum explores the art and artistry of fascism.

The history and future of cannabis.

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

This historic Amsterdam bar used to accept sailor's monkeys as payment.

Amsterdam's Red Light District leaves little to the imagination.

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

Cat art as far as the eye can see.