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 ...

with important hubs like Frankfurt and Nuremberg along the way. Limburg's roots, however, go back even further to the 10th century, when it was called Lintpurc. While the castle and cathedral are ...