the most striking. Culture and sights Among the sights in the Ahr Valley are the Roman villa of Bad Neuenahr-Ahrweiler, an excavation of a Roman settlement in Ahrweiler, next to the Red Wine Trail (Rotweinwanderweg). Near Bad Neuenahr the Ahr Valley is crossed by the prominent Ahr Viaduct that carries the A 61 motorway. The 1.5-kilometre-long, prestressed concrete bridge, completed in 1975, with its 50-metre-high concrete pillars, dominates this part of the valley. During the Cold War the Ahr Valley was envisaged as a safe location for the central organs of the federal government. Below the vineyards near Marienthal, a concealed government bunker was built in 1962 in a wider section of the valley between Dernau and Bad Neuenahr-Ahrweiler. It has been largely dismantled and, in March 2008, was opened to the public as a documentation site for the Cold War. For hikers the Ahr Valley has the following attractions: the Ahr Path (AhrSteig) with its two blue and red sections and a total of six stages, which has been nominated as a "Quality Path of Hiking Germany" (Qualitätsweg Wanderbares Deutschland) by the German Rambling Association (Deutscher Wanderverband). the Red Wine Trail (Rotweinwanderweg), that winds its way from Altenahr to Bad Neuenahr through the vineyards and continues to Bad Bodendorf. the Ahr Riverbank Way (Ahr-Uferweg) the Iron Trail (Eisenweg). the Wine Discovery Trail (Weinbaulehrpfad). For cyclists: the Ahr Cycleway (Ahr-Radweg), which runs mainly along the Ahr from its mouth in Sinzig and has only a gentle gradient. Transport and infrastructure The Ahr Valley Railway runs from Remagen initially double-tracked, before reducing to a single track from Walporzheim, to Ahrbrück. The line is closed beyond that point. References Literature Vera Kettenbach: Das Ahrtal von Bad Bodendorf bis Altenahr. Gaasterland-Verlag, 3. Aufl., Düsseldorf, 2010, Heinz Schönewald: Bad Neuenahr. Gaasterland-Verlag, Düsseldorf, 2006, Hans-Georg Klein: Ahrweiler. Gaasterland-Verlag, Düsseldorf, 2005, AhrtalReise. Gaasterland-Verlag, Düsseldorf, 2007, Christoph Bach: Der Regierungsbunker im Ahrtal und seine Geschichte. Gaasterland-Verlag, Düsseldorf 2008, . Das Ahrthal, malerische Ansichten / nach Originalzeichnungen in Stahl gest. von den vorzüglichsten Künstlern. Bonn : Habicht, [ca. 1840], Online-Ausgabe dilibri Rheinland-Pfalz Neuestes Album vom schönen Ahrthal. Bonn : Foppen, [ca. 1870], Online-Ausgabe dilibri Rheinland-Pfalz Heinz Schönewald: Bad Neuenahr - Das Weltbad der Kaiserzeit. Sutton Verlag, Erfurt 2009, External links Ahrtal-Tourismus Bad Neuenahr-Ahrweiler e.V. Ahrtal, Ahrwein, Weingüter und Weinfeste Kreisverwaltung Ahrweiler Ahrtalweg Die Mittelahr Hochwasser an der Ahr Valleys of Rhineland-Palatinate Landscapes of Rhineland-Palatinate Regions of the Eifel