The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

Along with his smaller donkey pal, he guards the museum’s exhibits and memorabilia.

Willy Wonka would love this weird half-a-home.

An architectural marvel built by a nearly forgotten Canadian Quaker sect, the Children of Peace.

The only rotating bar in New Orleans has been slowly spinning since 1949.

Inside a former cabaret, seven floors of erotic art.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

The narrowest street in Paris.

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

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

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

The history of radiation is on safe display at the foot of a radiation science laboratory.

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.

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

A museum of magic with a Sadist past.

A mechanized clock where a man fights off a dragon, crab, and rooster.

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

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

A haunting collection of the vanished and disappearing natural world.

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

This charming cobbled backstreet is the most Instagramable street in Paris, much to the residents' annoyance.