Hello Lois,
Aachen is direct at the Germann border to Belgium and the Netherlands. It is a
town with 23o ooo inhabitants plus more than 30 000 students because of its
university.
Kettwig and Werden are now parts of Essen, a town of 600 000 inhabitants, and is
situated 30 miles east the Rhine.
All three are in North-Rhine-Westfalia.
Hermann