Legend says this fabled well held part of a mythical Norse tree.

Annual technopop celebration of peace and love.

Museum devoted to the artificial language of Esperanto.

Collection dedicated to funeral rites, equipment, and mourning rituals of the Viennese.

This museum promotes informed contraception by documenting its often secret past.

Macabre museum devoted to historical Viennese murders.

Is this a portal to another side of the cosmos?

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

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

A lovely biographical museum in the artist's home of 24 years.

Dummies recreate radiological discoveries from history.

A series of carved figures that scandalized British society.

Potato-peeling mannequins, Inca art, and a dangling tuber mobile help trace the history of fries at this Belgian museum.

This fascinating museum in an old water tower holds the world's largest collection of Vodou artifacts from western and central Africa.

A museum dedicated to linguistics, from how babies learn to talk to endangered and extinct languages.

Dedicated to the history and culture of smoking, this small museum now includes a vape lounge.

An odd museum dedicated to French fakes.

This little-known relic crypt holds stolen parts of a Roman Empress.

This Parisian gem is one of the most incredible ethnographic museums in the world.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

The curious underground history of keeping Paris clean.

A unrivaled and rather horrifying collection of wax dermatological models.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

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