La Cité Médiévale de Carcassonne is the largest medieval walled town in Europe still standing with its walls intact, a distinction that very nearly didn't survive.

By 1800, it had sunk into near ruin, and in the 19th century, its own city council wanted it demolished. A local historian named Jean-Pierre Cros-Mayrevieille launched what became the first campaign anywhere in France to preserve a historical monument, eventually enlisting architect Eugène Viollet-le-Duc to restore it. The Cité is now a UNESCO World Heritage Site.

Its walls hold layer upon layer of uncomfortable history. The House of the Inquisition, founded here in 1333, predated the Spanish Inquisition by 250 years; the Spanish version simply copied its methods.

VoiceMap's self-guided audio tour traces the Cité's full arc, from Cathar crusades and Occitan identity to the preservation campaign that saved the walls from the people whose ancestors built them.