The conservation-restoration of the Ghent Altarpiece (1432), the world-famous masterpiece by brothers Hubert and Jan van Eyck, began in 2012 at the Museum of Fine Arts (MSK) in Ghent.

But if you look really hard you realise there's a lot more going on. Luckily, van Eyck painted plenty of clues. Time to do some detective work. INTER-DIMENSIONAL SOUND EFFECT MUSIC: Pachelbel's ...