The castle-palace of Belalcázar is one of the most representative of the 15th century, when the nobility attempted to demonstrate its social and economic status.
Built entirely of stone blocks, Belalcazar preserves two enclosures: an outer barrier adapted to the irregularities of the land and reinforced with rectangular towers, and the inner rectangular castle-palace with eight towers, one at each corner and another in the center of each side. All eight towers are of average height except for the eastern and principal tower, which rises noticeably above the rest.
In the 15th century, some Renaissance construction was added to improve the accommodations of the palace, which were insufficient in the old principal tower.The castle was built by the magnate Gutierre de Sotomayor, grand master of Alcantara, with the benefices he earned from his various possessions. The castle later passed on to the houses of Benavente and Osuna. In 1811, during the War of Independence, French troops defended the castle against a siege by the duke of Wellington's British troops.The exterior of the fortress is almost entirely intact, but nothing remains of the interior structure.
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.