If you want to see as many castles as possible in the least amount of time, take a ride on the Castle Road, one of Germany's Scenic Drives. This themed route is lined with 70 castles and palaces, enough for any castle lover.
The Castle Road, called Burgenstraße in German, is over 625 miles long; it starts in Mannheim and leads you all the way to Prague in the Czech Republic.
The closest international airport with direct access to the Castle Road is in Nuremberg.
You can also fly into Munich, Frankfurt am Main, or Stuttgart. From there, take the Intercity Express (ICE) to Mannheim, Nuremberg, Heidelberg, or Bamberg, where you can start your castle tour.
German Castle Road - Route:
The website for the Castle Road is in English and has a very good map of the route, including exact distances between castles and cities. It also shows you which castles house restaurants or hotels.
By car: The Castle Road consists of a series of small, winding back roads with easy to follow signs. Along the way, you pass several rivers and drive through spectacular landscape.
You reach the route from the following Autobahns (motorways): A3, A5, A6, A7, A9.
By train: Almost all towns along the route have a train station, and the train mostly travels parallel to Castle Road.