Miranda del Castañar Castle, or at least the tower of homage, was probably built by Pedro de Zúñiga. By means of a small enclosure that serves as a gate, the tower is attached to another D-shaped tower and other remains that might belong to a previous fortress. The round loopholes are the usual 15th-century artillery loopholes.
Miranda was founded around 1215.The well preserved wall probably dates from that time. Prior to the death of Diego de Zúñiga, the fortress is taken by García Alvarez de Toledo, the Duke of Alba, who claimed to be entitled to have it.
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.