This puzzle has been ridiculously challenging. I had to look at ‘the picture’ – a fold out photo of the puzzle included in the box – for nearly every piece. It is a very nice photo mosaic puzzle. There are hundreds of small pictures of the United States space program. From men walking on the moon, to space shuttle team photos, to rockets launching, to splash downs in the ocean, to pictures of the atmosphere, this puzzle has it all. There are 62 x 46 or 2852 small pictures.