Dordrecht is a Dutch city close to Rotterdam. The city has quite a history and, as usual in the Netherlands, there is the well preserved historic center, with all the old buildings, brimming with modern live; and on the other hand around that and partly in-between there is the modern city. But however modern Dutch cities may be modernity needs the past. Maybe that's what keeps the Dutch rolling.
You won't that much in the travel guides about Dordrecht. Of course there are websites such as visit Dordrecht to look for more useful information. The site manages several languages, so no matter where you come from, you will find something there.