This mini-app allows you to explore some of the common polyhedra. Select the one that you want using the drop-down menus. Move your mouse (or touch) near the spinning polyhedron in order to change the direction of rotation, or change to 'drag' mode so that you can rotate it yourself using your mouse or finger. Try selecting different colouring options or the 'exploded' view, which helps to show how the polyhedra are constructed.