On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

Traditional 11th-century outdoor tannery.

The oldest known university in the world is in Fez, Morocco.

Five candy-colored villages on the Italian Riviera.

A quaint Russian village in the middle of a German metropolis.

Over 80,000 carved wood blocks make up one of the world's oldest intact Buddhist canons.

Survival capsules find a second life as a unique hotel.

A former plague hospital turned medical museum.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

Colorful and chaotic stacked hotel in North Holland.

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

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

The attic of a four-century-old canal house hides a clandestine church.

Cat art as far as the eye can see.

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

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.

This still-celebrated home was a radical architectural experiment in 3D De Stijl.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

Japanese national treasure originally built in 593 CE.

An exquisite tunnel of cascading flowers.