Nostalgia in its classic form—a longing for home—has commonly welled up among Parisians living far from their city. That kind of nostalgia famously afflicted soldiers called to battle, notably during the drawn-out “Great War.” It also struck civilian Parisians unable to return to their hometown during the Occupation. A more common and widespread form of Parisian nostalgia is the bittersweet remembrance of a time in the past, especially following a bout of charm-destroying changes or urbanist operations, such as those of the Second Empire and the Fifth Republic. Cultural memory has imbued one particular era with the greatest nostalgia: the so-called Belle Époque. More generally, Parisian nostalgia has focused on a memory of the disappearing petit peuple and a handful of picturesque sites, such as pre-1914 Montmartre and, in the late twentieth century, the old central Halles, Belleville, and the Rue de Lappe.