Add very nice cafeteria employees and a welcoming atmosphere.
The sad part is that you really need a car to do this kind of tourism in Belgium. Hornu for example by public transit would mean to take the train to St Ghislain and then a cab to Hornu. A car sharing like mobility in Switzerland would be great, it would have saved the huge car trip for me.
Belgium is in general a wonderful collection of brickwalls and industrial buildings - together with one of the most charming and friendly populations I ever expected in Europe - in all three parts of the country! (no pun intended, +Harry Fabel
! :) ).
I found something in Belgians, which I did not observe often elsewhere: They have the specialty of not taking themselves too serious. They are able - and they do - to laugh about themselves.
It is a country to fall in love with - and at the end you do not know why.