A bit of wall architecture

I checked the Mono Monday theme while walking the block- architectural glimpses.  If you look carefully you will glimpse stones of different shapes and going in different directions , all carefully placed to build the wall with no mortar - that's why its dry ! . Damn clever these wallers.  But do not try and climb over one , you will likely dislodge some stones and its jolly  difficult to put them back in the right place. 
Thanks PelorusJack for hosting