The Hohenzollern bridge in Cologne seen from the main station on 5 August 2001.
Note the visual differences between the two old parts on the right, which were
rebuilt after the second world war, and the new part on the left, which was
built in the eighties for the S-Bahn (urban trains). A class 423 EMU is
standing on the bridge.
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Digital photo by
<a href="http://www-users.rwth-aachen.de/christoph.schmitz2/index.html">Christoph
Schmitz</a>