There is an interesting film about the DB class 181² in H0 at Märklin-TV.

Diverse traction current systems in Europe were an obstacle to cross-border trains in the 1960s. A publication just released by EK-Verlag memorializes DB's multi-system locomotives, some of which are still in service.

The Müngsten Bridge, opened in 1897, is 107 meters high and crosses the Wupper near Solingen with two tracks in a spectacular way. A remarkably good film about Germany's highest railroad bridge is available at public service TV WDR.

Stuttgart's main station was a well-functioning terminus with interesting rolling stock in the 1970s. A look back to epoch IV. Later, Märklin also advertised model trains here.