A few days ago I've been visiting Leuven for a short business related trip. Unfortunately I didn't really have the time to see much of the city. Nevertheless I've took a short stroll through the beautiful city centre before I headed to the trainstation back home. First thing i recognized: Everybody is, like in the Netherlands, cycling like a maniac in Belgium. That feels like a big contrast to Germany, where cycling isn't that popular I guess.
Another big difference to Germany is the still existing historical part of the city and all those tiny shops everywhere. I think that's probably mainly because Germany has lost a huge part of it's architectural history due to WWII which is quite sad. It creates such a cozy feeling which I experienced way more in cities in the Netherlands and now also Belgium.
Next time i visit I will try to find some more time, so I can also taste some of those > 1000 beers they have there ;)