Cathedral of Notre Dame De La Treille©Notre Dame De La Treille Cathedral|Laurent Javoy - Hello LilleAn unmissable destinationBelfry of Lille Town Hall©Belfry of Lille Town Hall|Laurent Javoy - Hello LilleBelfries and Town HallGuided tour©Guided tour|Olivier Duhamel - Lille TourismeOur group and private toursMosaic Garden©Mosaic Garden|Laurent Javoy - Hello LilleSustainable travel