It probably took somewhere between 5 to 10 minutes to put it together. A lot longer than I thought it would for a 14 piece puzzle. The pieces are so small, it is hard to tell them apart if they don't have letters on them. I cant imagine putting together a 500 piece one. It would be cool to have a nicely toned Morgan Dollar cut into a puzzle, or maybe one of the Dark Knight medals when they get done.