A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

Notorious artist squat renovated into legal studios.

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

A counter-culture bookstore like no other hides in plain sight in the streets of Paris.

A haunting collection of the vanished and disappearing natural world.

This Parisian café sticks almost exclusively to an ethos of reuse.

A scandalous Art Nouveau collaboration that set Paris all atwitter at the turn of the century.

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

France's national museum of scientific and industrial instruments.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

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

This frog-themed restaurant was frequented by Picasso, Saint-Exupéry, and more.

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

Started as a kitchen garden, now the second largest botanical garden in the world.

A surreal museum of extraordinary industrial objects.

A wunderkammer of mysterious objects and stories.

This little museum is making sure that the art and history of the graffiti sticker is not scraped from history.

Visitors can explore the role of mysticism throughout the ages inside this interactive museum of magic.

Puppet theater and museum holding a collection of more than 300.

A remarkable cabinet of curiosities in an art space in the center of Berlin.

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.

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

Cat art as far as the eye can see.