Sanlúcar de Guadiana castle dates back to the seventeenth century, around 1642 or so, when Jerónimo Ró decided to strengthen the village from the Portuguese troops. In 1666, the fort fell into Portuguese hands. In 1741, Ignacio Sala reformed the west crescent. Entirely constructed of stone and different finishes depending on times of renovation.
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.