The history and future of cannabis.

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

A floating cat sanctuary on an Amsterdam canal.

A 16th-century fountain marks the site of a lost medieval cemetery once filled with mass graves.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

Skeletons, medical artifacts, and other obscure and precious treasures all displayed in a wooden pharmacist's cabinet.

An antique curios dealer and hybrid taxidermist.

A charming flea market shop dedicated to retrofuturistic apparati.

A museum of carnival attractions where you are invited to ride the rides.

The curious underground history of keeping Paris clean.

A Belle Epoque bordello turned into a themed love hotel.

Inside a former cabaret, seven floors of erotic art.

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

A unrivaled and rather horrifying collection of wax dermatological models.

Hidden away in a modern library are the remains of one of the 18th century's most celebrated wunderkammers.

The recovered bones of martyrs slaughtered during The Terror are on display in this church crypt.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

Paris' fabled purveyor of exotic taxidermy and natural history curios.

Weird wax anatomical models reside here, as do other anatomical specimens.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

A museum of magic with a Sadist past.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

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

A world-class collection of mechanical musical instruments and automata.