A Unesco World Heritage Site since 2008, the citadel of Neuf-Brisach has remarkably well-preserved fortifications. The Musée Vauban, below the porte de Belfort gate, tells the history of the citadel through models, documents and building plans. Neuf-Brisach is just 4km from its German twin Breisach am Rhein on the banks of the Rhine.