Abstract: A folding box dioramic toy has a rectangular base panel for displaying central scenic structures and rectangular side panels hinged thereto also displaying scenery. The side panels include integral triangular members extending orthogonally therefrom which in a box closed mode form a closed box top and in an unfolded mode provide vertical back-drops for additional scenery or structures. The scenery and structures show a diorama, such as a medieval castle and outbuildings, such that a child can place and move toy archers, horse-mounted knights and villagers around while playing an imaginative interactive play game. The panels and hinge elements are all snap-connected. The apex of each triangular member terminates in a quarter-ball segment and contains in the closed mode a circumferential groove into which a flexible latch loop or ring mounted on one of the triangular members can be pushed locking the resultant locking dome.