A true labyrinth is unicursal β a single continuous path that winds its way to the centre and back out again, with no branches, no dead ends, and no decisions to make along the way. This is the crucial and frequently overlooked distinction between a labyrinth and a maze, which is multicursal, offering multiple paths, choices and genuine wrong turns. Getting "lost" in a true labyrinth is structurally impossible β the only choice available is whether to keep walking.
The most historically common classical design uses seven concentric circuits winding toward the centre, found on ancient Cretan coins and pottery. The design most associated with medieval Christian cathedrals, most famously at Chartres, uses eleven circuits arranged in a distinct quartered pattern, its increased complexity reflecting several intervening centuries of design elaboration.