How much is 1 cubic meter ( 1m3 ) ?

I had trouble at first to imagine how big 1m3 really was. Was it 17 boxes, 10 boxes, 5 boxes ? And how big were those boxes ? Well, here are two pictures of how much 1m3 really is ( 6 big boxes + 2 small ones in our case ). I put the shoe and water bottle (1.5 liters) on there so you have a reference to the dimensions of the boxes. ( Uninteresting trivia : it's a real Harley-Davidson shoe that we bought in America while we did the Route66 on our rented Harley Davidson motorbikes ! )