closed since September 2012) Musée historique in Haguenau, largest museum in Bas-Rhin outside Strasbourg Bibliothèque humaniste in Sélestat, one of the oldest public libraries in the world Christmas markets in Kaysersberg, Strasbourg, Mulhouse and Colmar Departmental Centre of the History of Families (CDHF) in Guebwiller The Maginot Line: Ouvrage Schoenenbourg Mount Ste Odile Route des Vins d'Alsace (Alsace Wine Route) Mémorial d'Alsace-Lorraine in Schirmeck Natzweiler-Struthof, the only German concentration camp on French territory during WWII Famous mountains: Massif du Donon, Grand Ballon, Petit Ballon, Ballon d'Alsace, Hohneck, Hartmannswillerkopf National park: Parc naturel des Vosges du Nord Regional park: Parc naturel régional des Ballons des Vosges (south of the Vosges) Transportation Roads Most major car journeys are made on the A35 autoroute, which links Saint-Louis on the Swiss border to Lauterbourg on the German border. The A4 toll road (towards Paris) begins northwest of Strasbourg and the A36 toll road towards Lyon, begins west from Mulhouse. Spaghetti junctions (built in the 1970s and 1980s) are prominent in the comprehensive system of motorways in Alsace, especially in the outlying areas of Strasbourg and Mulhouse. These cause a major buildup of traffic and are the main sources of pollution in the towns, notably in Strasbourg where the motorway traffic of the A35 was 170,000 per day in 2002. At present, plans are being considered for building a new dual carriageway west of Strasbourg, which would reduce the buildup of traffic in that area by picking up north and southbound vehicles and getting rid of the buildup outside Strasbourg. The line plans to link up the interchange of Hœrdt to the north of Strasbourg, with Innenheim in the southwest. The opening is envisaged at the end of 2011, with an average usage of 41,000 vehicles a day. Estimates of the French Works Commissioner however, raised some doubts over the interest of such a project, since it would pick up only about 10% of the traffic of the A35 at Strasbourg. Paradoxically, this reversed the situation of the 1950s. At that time, the French trunk road left of the Rhine not been built, so that traffic would cross into Germany to use the Karlsruhe-Basel Autobahn. To add to the buildup of traffic, the neighbouring German state of Baden-Württemberg has imposed a tax on heavy-goods vehicles using their Autobahnen. Thus, a proportion of the HGVs travelling from north Germany to Switzerland or southern Alsace bypasses the