A pocket of left-bank Parisian chic deep in Provence, Aix (pronounced like the letter X) is all class: its leafy boulevards and public squares are lined with 17th- and 18th-century mansions, punctuated by gurgling moss-covered fountains. Haughty stone lions guard its grandest avenue, cafe-laced cours Mirabeau, where fashionable Aixois pose on polished pavement terraces sipping espresso. While Aix is a student hub, its upscale appeal makes it pricier than other Provençal towns.