My first attempt with a 4D puzzle. The first level was quite difficult to repeatedly adapted to obviously wrong places because of the identical shape of the pieces. The material is cardboard and qualitatively quite well. Only a few pieces were not completely separated. The second layer disappointed me somewhat. The foam material of the pieces was not high and I had to first disconnect before the assembling quite a few pieces. This could have been much better. Positive I found after all the lamination when separating the parts did not dissolve the foam base. Beigefüht is a poster with the name, number and year of construction and the single plastic Housing & Co are also numbered. As to the whole puzzle, the numbering of the individual buildings is printed was a list quickly possible. Overall, the puzzle was successful and also very entertaining. Why 'only' three stars? 1 star deduction because of poor and some not separate foam parts. Another trigger for the figure, point 3 (a bridge): The miniature bridge is there, is also listed on the posters, but is not marked on the puzzles. (Neither the picture nor supplied together to the finished puzzle) For this is the miniature No. 39 is not marked on the image later but findable on the finished puzzle. Maybe I'm just a little snobby: my puzzle I hope now times without error and fully built up.