Loughor Castle is a ruined, medieval fortification built around 1106 by the Anglo-Norman lord Henry de Beaumont, during the Norman invasion of Wales. The site overlooked the River Loughor and controlled a strategic road and ford running across the Gower Peninsula. The castle was designed as an oval ringwork, probably topped by wicker fence defences, and reused the remains of the former Roman fort of Leucarum.
Over the next two centuries, the castle was involved in many conflicts. It was attacked and burnt, probably in the Welsh uprising of 1151, and was captured by the forces of Llywelyn the Great in 1215. John de Braose acquired the castle in 1220 and repaired it, constructing a stone curtain wall to replace the older defences. Attacked again in 1251, the castle was reinforced with a stone tower in the second half of the 13th century. It declined in importance during the late-medieval period, and by the 19th century, the castle was ruinous and overgrown with ivy.
In the 21st century, Loughor Castle is controlled by the Welsh heritage agency Cadw and operated as a tourist attraction. The ruined tower and fragments of the curtain wall still survive on top of the ringwork's earthwork defences, which now resemble a motte, or mound, and are part of the Loughor Castle Park.
References:The Broch of Clickimin is a large and well preserved, though somewhat restored broch near Lerwick. Originally built on an island in Clickimin Loch (now increased in size by silting and drainage), it was approached by a stone causeway. The water-level in the loch was reduced in 1874, leaving the broch high and dry. The broch is situated within a walled enclosure and, unusually for brochs, features a large 'blockhouse' between the opening in the enclosure and the broch itself. Another unusual feature is a stone slab featuring sculptured footprints, located in the causeway which approached the site. Situated across the loch is the Clickimin Leisure Centre.