Augsberg
Bad Schandau (Kirnitzschalbahn)
Bamberg
Berlin
Bielefeld
Bochum
Bonn
Brandenburg
Brannenburg
Braunschweig
Bremen
Chemnitz
Cologne
Cottbus
Darmstadt
Dessau
Dortmund
Dresden
Duisburg
Dusseldorf
Erfurt
Essen
Frankfurt
Freiburg
Garmisch-Partenkirchen
Gera
Gorlitz
Gotha
Garmisch
Halberstadt
Half
Halle
Hamburg
Hannover
Heidelberg
Heilbronn
Jena
Karlsruhe
Kassel
Kiefersfelden
Kohlfurth
Königswinter
Krefeld
Leipzig
Lichtenhain
Ludwigshafen
Magdeburg
Mainz
Mannheim
Mullheim
Munich
Naumberg
Nordhausen
Northlive
Nurnberg
Oberhausen
Oder
Plauen
Pottsdam
Rhein-Ruhr
Rhein-Seig
Rostock
Saabrucken
Schönberger Strand
Schöneiche Ruedersdorf
Schwerin
Schwerte
Spiekeroog
Strausberg
Stuttgart
Trossinger
Tubingen
Wuerzberg
Ulm
Wehmingen
Woltersdorf
Wurzburg
Wuppertal
Zwickau

Bonn
light rail in subway, tramway

Bonn and Cologne, though two separate cities, share the same urban rail network. Lines 16 and 18 connect the two cities, each via a different route. A total of seven lines share a 4.3 km subway section that is part of a larger 54.7 km network, including 15.7 km of tramways that share the largely segregated system trackage. The southern part of the network includes four underground stations in the city of Bad Godesberg. There are also several more suburban stops in subway.

Information about the subway system in Cologne
Ralf's Cologne Tram Page
Öffentlicher Personen-Nahverkehr Region Köln-Bonn
Official Home Page
Bahnen in Bonn(Trains in Bonn) - German only, by Edmund Lauterbach
Bonn tramway webcam
Oktoberfest U-Bahn in Bonn

Elektrische Bahnen Der Stadt Bonn 
Und Des Rhein-Seig-Kreises 
Theaterstrasse 24 
Box 18 02 40 
D5300 Bonn 2, Germany