Neolithic and Bronze AgeFurther along the road to Ty-Lia allee couverte (see previous) after 100 yards a 5 foot standing stone is visible on the left. Walk through a gateway and the stone is under a tree, with three smaller stones nearby to the south on the other side of the tree and hedge.
Image submitted by bishop_pam

Neolithic and Bronze AgeA fairly complete allée couverte, well signposted and in a little grassy area on the island of Ile-Grande, just off the coast near Trebeurden. It is about 9 metres long by 1.5 metres wide, and oriented to 110°. There are two large capstones which cover most of the chamber.
Image submitted by DrewParsons

Neolithic and Bronze AgeWhat was originally a neolithic chamber is now bizarre in appearance, consisting of a capstone apparently delicately balanced on just two tall pointed supporting stones. Although difficult to reach, the effort required is worthwhile.
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Neolithic and Bronze AgeThe Long Rock takes some finding, concealed as it is (was?) by a small wood and a blanket of ferns. It is 2.4 meters long with a smooth face that used to lean towards the southeast and tapers slightly at the top.
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Multi-periodAn earthwork enclosure located on the summit of Doon Hill c. 350m NNW of Kildonnan Farm on the B7042 between Sandhead and Portpatrick in Dumfries and Galloway. The rectangular grassy mound measures approx 20m east-west by 17.5m north-south. It is protected by an earth rampart and outer ditch.
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Neolithic and Bronze AgeDespite looking very difficult to get to on my maps, this lateral entry allée couverte to the southwest of Loguivy is actually very easy to find, as a new housing developement has been made, with the roads through it signposted to the allée couverte, and then a little trackway made up to it.
Image submitted by LeRoyBreizh

Early MedievalEarly Christian cross, round tower, rare medieval monastery complex, holy well, bullaun stone and rag tree. The monastery was founded by St Ciaran the Elder in the 5th century, which makes Saighir one of the earliest church/monastic sites in Ireland, older than Clonmacnoise and older than St. Patrick by the tradition that made Ciaran one of the pre-Patrician saints.
Image submitted by Anne T

Springs and Holy WellsThis must be the most unusual location for a holy well. The well is in the cave and only accessible at low tide. Water seeps from the multi-coloured rock and mothers formerly crossed the sands of Holywell Bay to immerse their ailing children in the healing water. Real pagan magic here with no obvious Christianisation.
Image submitted by TheCaptain

Roman, Greek and ClassicalThree semicircular apses open off a square central space, roofless now, the fill of the vaults showing where the tiles have gone. This was a Roman tomb, built in the fourth century for the owners of a wealthy villa whose remains lie scattered about a hundred metres away. The masonry is original: small blocks of tufa laid in courses, in the technique called opus vittatum, with brick used inside and tufa outside.
Image submitted by Anne T

Modern SitesThe experimental earthwork on Overton Down, its bank and ditch cut into the chalk in 1960 so that archaeologists could watch how such a structure weathers and settles. The posts along the crest belong to the monitoring. The point of the exercise was and is to dig sections through it at planned intervals over more than a century, and so measure decay against a known starting point rather than infer it. Photo credit: Wiltshire Heritage, (Creative Commons)
Image submitted by Creative Commons