More than 25,000 castles crown the hills of Germany, so it can be difficult to choose which ones to visit. If you're seeking the best in terms of history and opulence, drive the nearly 479-mile ...

Set in an idyllic garden landscape, Augustusburg Castle (the sumptuous residence of the prince-archbishops of Cologne) and the Falkenlust hunting lodge (a small rural folly) are among the earliest ...