The working defenses atop a castle wall, consisting of a Wall Walk fronted by a Parapet (crenelated), often corbelled out to allow for machicolations, or in earlier castles protected by a Hoarding
A parapet with alternating indentations (embrasures) and raised blocks (merlons) Also called crenelations
a parapet with an alternately raised and lowered outline ~Beatific Vision : the vision of God in heaven which is the final destiny of redeemed souls
The battlements of a castle or fortress consist of a wall built round the top, with gaps through which guns or arrows can be fired. a low wall around the top of a castle, that has spaces to shoot guns or arrows through