A place for walking under shelter. The word is usually appliedto the columned projection before the entranceto a templeor similar building. Porticos of this kind are described according to the number of frontal columns viz. Tetrastyle (4), Hexastyle (6), Octastyle (8), Decastyle (10) and Dodecastyle (12). Where there are only two columns between pilastersorantae the expression used is Distyle in Antis. Photo from Washington, DC, 2012. (Whiffen, 1969)