It's MAS - Museum aan de Stroom, in Antwerp.
It was part of a 'more micro than microscale' weekend trying to get as much detail out of as few bricks as possible. I don't think I _completely_ succeeded, but the way the windows go all the way around the building in up steps, is quite neat.
There's inaccuracy since the windows are offset back, slightly, but it's a decent first attempt.
I wait improvements from other LEGO punkers...!