For the quickest route, in Munich take E6, the Autobahn to Nürnberg. Continue for about 10 kilometers. Get off at the Dachau exit and onto the road to Schleissheim/Dachau/Fürstenfeldbruck. From the exit, it is about 10 kilometers to the camp at the outskirts of the town of Dachau.
From East Berlin, take E95 north about 30 kilometers to Oranienburg. Look for signs to "Gedenkstätte Sachsenhausen." It is located on the outskirts of Oranienburg.
Right outside Weimar, GDR.
In Vienna, take the Vienna-Linz Autobahn, E5. In Linz look for 123 East. Take 123 East about 20 kilometers to the town of Mauthausen. The camp is a few kilometers up the road.
At Wohenstrauss (on E 12 from Nürnberg) go to the center of town and follow the signs to Weiden. Just outside of Wohenstrauss (1/2 kilometer) on the road to Weiden, is a sign on the right which says, "Floss, 13 km" -- follow to Floss. In the center of town turn right to Flossenbürg (sign says, "Flossenbürg, 6 km"). In town, stop at the small memorial park. Then continue past a monument to the outskirts and a sign to "Grab-Gedenstätte Flossenbürg."
From Berlin take E6/96 north toward Neustrelitz and Neubrandenburg. Road will pass through Oranienburg, Gransee, and Fürstenberg. The town of Ravensbrück is about 89 kilometers on E6/96 from Berlin.