Super-heavy Nazi architectural experiment.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

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

The personal library of the founder of modern neurology is open to visitors.

The oldest and smallest cemetery in Paris is only open to the public twice a year.

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

This museum in a Paris apartment gives a unique look at the iconic French singer's life.

Where the high court feasted, frolicked, and high courtesans put their royal lovers' diamonds to the test.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

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

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

Indents in the pavement are all that remain from a grisly death machine in Paris.

A haunting collection of the vanished and disappearing natural world.