Moscow's other, lesser known kremlin is a fairytale-like cultural complex modeled after Old Russia.

Museum celebrating the achievements of the Soviet space program.

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

A hospital where antique dolls are given new life.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

The largest collection of handbags in the world, the oldest of which were used to carry Bibles, primarily by men.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

An alchemist's "magic door" stands in the middle of a Roman park.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

Architectureal fantasy quarter of Rome.

Cat art as far as the eye can see.

A fairy tale castle in modern Rome.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

On rare days, this abandoned castle's gatekeepers open its doors, revealing the eye-popping splendor hidden inside.

Over the centuries, this island paradise has done it all, from providing monks with ecclesiastical respite to sheltering an exiled Leon Trotsky.

The most metal church of all time was built in record time because of an international, pious pissing contest.

This museum was invented in a novel before being made real by the author.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

1513 Turkish world map, full of European state secrets and snarky commentary.

The home-turned-museum of Barış Manço, the mustachioed Turkish Elvis for children.

The library's graceful rotunda is like a bibliophile's temple.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

Copenhagen's celebrated theme park and gardens.