Noirish green neon marks the location of one of the oldest private detective agencies in France.

The Ryerss mansion in Burholme Park now houses a community library and a museum filled with a trove of oddities from around the world.

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

A museum dedicated to one of Paris’s most famous residents, tucked into a corner of one of the city’s most famous squares.

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

Notorious artist squat renovated into legal studios.

The Sun King's military models, saved from the Louvre.

The home and studio of a visionary woodworker now stands as a museum and example of his artistic genius.

France's national museum of scientific and industrial instruments.

Offal and flawless onion soup are on the menu at this restaurant that once catered to the workers of Les Halles.

The spiral staircase hidden inside this giant Parisian column was likely built for Catherine de Medici's astrologer.

With a history of slaughter, feast, and famine, remnants of the pork industry decorate this area--even its church.

This massive library holds what was once the largest book collection in the world.

A simple but powerful tribute to the 20 victims of the 1692 witch trials.

A museum dedicated exclusively to the lore and history of ouija boards.

An 80-year-old house built out of newspapers.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

Old neon signs from the City of Brotherly Love provide a snapshot of the city’s evolution.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A well-preserved example of an early industrial operation in the northeastern United States.

The abandoned ruins of America's first private zoo are open for exploration in the Catskills.

This 19th-century clock has been restored to help withstand the harsh environment of its seaside home.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.