Since I am interested in history and likes puzzle I thought this Puzzle is exactly right for me. Overall, it was fun to put that puzzle, but ... Unfortunately, there were already at the first layer (made of cardboard as an ordinary puzzle) problems, the parts are very angular cut, so they fit in several places. No comparison to products of the company Ravensburger The second layer (printed foam) slept pretty well, but you'd actually this layer on the lower stick (to instructions), which is of course very unfortunate. The placeholder for the building in the foam layer should be removed in sequence, otherwise very difficult, the building will be assigned. All in all, the puzzle is a nice idea, but this was not thought through to the end. I have to buy and not to buy another puzzle of this kind.