<p>This invention relates to building blocks. Many toy building blocks are known but most are limited in the manner in which they can be put together. The present invention seeks to provide a building block (1) which can be assembled with other such building blocks (1) in a number of orientations. The present invention provides a building block (1) (hereinafter called "the first block") of cuboid shape having 6 faces (3) adapted to allow any of its faces to interlock together with any of the faces (3) of another substantially identical block (1) (hereinfafter called "a second block").</p>
