Photo (detail): Thomas Wolf (www.foto-tw.de/Wikimedia Commons, creativecommons.org/licenses/by-sa/3.0/deed.en) Cologne No, sorry. Cologne is not a small town – and the town we have in mind has an even more impressive historic centre. Let’s try that again … Which small German town is world-renowned for its well-preserved medieval centre? Gelsenkirchen Rothenburg ob der Tauber
