It might appear confusing, but there is definitely a way out of Dreilaendereck! Bring the family and see how much time it takes you all to make it to the end.
You'll soon see why this Vaals network of paths and hedges is popular with travelers. If you're looking for other things to see here, Carolus Thermen Bad Aachen, Aachen Cathedral, and RWTH Aachen University are in the area as well. They won't take very long to get to from Dreilaendereck.