A tiny gilded room on Piazza Castello, twenty square metres of marble and mahogany under a coffered Art Nouveau ceiling. Most customers stand at the bar for an espresso; the cafe is most famous for its tramezzini, the small white-bread triangles invented here in 1925.
Order half a dozen as an aperitivo. The classic fillings — tuna and artichoke, anchovy, gorgonzola and walnut — are still the best in Turin. The cafe is one of the registered "historic shops" of Italy and has barely changed since 1907.