Ribart de Chamoust

His first names are unsure but are likely to be François-Joseph, though he has also been called Charles François.

[1] In 1758, Ribart planned an addition to the Champs-Élysées in Paris, to be constructed where the Arc de Triomphe now stands.

It consisted of three levels, to be built in the shape of an elephant, with entry via a spiral staircase in the underbelly.

The building was to have a form of air conditioning, and furniture that folded into the walls.

[2][3] Napoleon would later conceive a similar construction, the Elephant of the Bastille.