Gengenbach and Wetzlar, are 2 more beautiful German towns filled with the most fabulous old half-timbered houses. The two rivers, Lahn and Dill flow through Wetzlar in Hessen and add a lot of atmosphere to the town. Hundreds of fabulous well-maintained half-timbered houses can be admired in the many sometimes narrow streets of Wetzlar. Two of the most interesting sights must be the 13th-century seven-arched…