Garden seat (Clive Herdman)

Spotted in Galloway in Scotland, an interesting take on Scottish single skin walls built by sub-contractors for Scottish Water (Dave Purvis)

Swaledale in the snow March 2018 -Storm Emma aka "The Beast from the East" (Clive Herdman)

Gunnerside, Swaledale - the size of the stones and method of construction indicates they are medieval, probably built 300 to 400 years ago (Dick Laidler)

Meall Bhuide, Blackmount - these may well be the highest stone walls in the UK, at 3500ft on Meall Bhuide, Blackmount, Scottish Highlands. Admittedly they are not brilliant walls, but they're only used to herd skiers around the pistes (Frank Broughton)

Pentre Ifan burial chamber, Cardigan - Spotted on a recent visit to Wales, the Pentre Ifan burial chamber is located 10 miles south of Cardigan Bay and is the largest and best preserved dolmen in Wales. Believed to date to the Neolithic period at about 3500 years BC, it was used as a communal tomb and would have originally have been covered with a large stone mound about 36.6 meters in length and 17 metres wide. Some of the stones are now scattered, but at least seven are still in their original position. The capstone is 5.1 metres in length, estimated to weigh 16 tonnes and rises 2.4 metres above the ground. It is delicately supported by the narrow tips of three uprights. The façade surrounding the entrance portal was built with carefully constructed dry stone walling. Well worth the visit if anyone is in the area, it is well signposted off the main road, down narrow lanes and only a short walk to the exposed site from the car park information panel material copyright Cadw (Dave Purvis)

Pentre Ifan burial chamber, Cardigan (Dave Purvis)

Stainburn Forest, Harrogate - an unusual wall built with orthostat stones, with the gaps in between filled with dry stone walling (John Pridmore)

Winston, River Tees - this unusual feature is a Hermit's Cell (Ewan Allinson)

Assynt, Scottish Highlands - made from local limestone (Clive Herdman)

Assynt, Scottish Highlands - 4 courses with vertical cappers (Clive Herdman)

Great Whernside - a patchwork of walls (Molly Pridmore)

Great Whernside - just could resist patching up a little shelter, even out on a walk (Molly Pridmore)

Great Whernside - bet that one took some building going over the top of Great Whernside at 700 metres (Molly Pridmore)

Great Whernside - view down the valley to Kettlewell (Molly Pridmore)

Great Whernside - now thats a wall end! Our chairman standing at 6ft 4in is towered by this great construction (Molly Pridmore)

Great Whernside - at least the cripple hole was built to last! (Molly Pridmore)

Great Whernside - a different view of Great Whernside (Molly Pridmore)

Great Whernside - a Yorkshire Dales patchwork of walls (Molly Pridmore)

Orthostats - typical ancient walls, the large stones are Orthostats - standing stones, and are too large to move in the absence of mechanical aids - so it was customary to take the wall to the stone, rather than the other way around! (John Pridmore)

Belsay Hall and Castle, Northumbria - an interesting wall in the quarry garden, perched on a sheer face about 25 feet above the floor. One wonders whether the waller was either a keen abseiler too, or simply a dab hand at the controls of a cherry picker... (Brian Wood)

Tan Hill, Swaledale - these pictures show an especially fine piece of walling - someone took a great deal of time over that with not just the immaculate dressing to follow the shape of the batter, but the nice finish to the top stones as well. A truly quality piece of work. Did you spot the thin filling piece between the big capstone and the first top stone, driven in to tighten the capping run? Even that has been dressed to shape!

Walls in Southern Ireland (David Perry)

Walls in the landscape