A vast red-velvet salon under the arcades of Via Po, opened in 1780 and patronised by Cavour, Mark Twain, Friedrich Nietzsche and most of nineteenth-century Turinese politics. The interior — original leather banquettes, dark wood, mirrored walls — has barely changed.
Order the gianduiotto ice cream, which Fiorio claims to have invented. The hot chocolate is also one of the city's best — thick enough to stand a spoon in, served with whipped cream and a glass of water on the side. Open until midnight most days.