Baroque celebration of the end of the Great Plague of Vienna.

Handsomely crafted representations of our round planet.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

The beautiful baroque library of the Hapsburg empire.

The remaining relics of the patroness of Paris lie in a chapel under a striking double spiral staircase.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

Cat art as far as the eye can see.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

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 beautifully eclectic mix of architectural styles.

This bridge was constructed from the rubble of the infamous Bastille.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

This museum houses an imposing skeleton army comprised of creatures great and small.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

The oldest stone house in Paris was built by its most famous alchemist.

France's most famous cemetery, with some of its most curious tombs.

Notorious artist squat renovated into legal studios.