Today I found about this Medieval Fair (thanks to one of my readers!) that is taking place since yesterday and until tomorrow in the Parc du Cinquantenaire (next to the Merode entrance). It is a great event, full of stands selling all sorts of things (lots of food & drinks, jewelry, shoes, you name it!). The people from the organization are wearing costumes and there's lots of activities for kids (that are fun to watch for adults as well, like those guys imitating a fight from back then). I recommend that you pass by there tomorrow, if you have the chance (entrance is for free)!
Sorry for the photos' quality, they were exceptionally taken with the cellphone!