Begun in the 16th century by Hernando de Vega over remains of a 10th century castle, the Grajal de Campos Castle was finished by his son Juan de Vega y Acuna, count of Grajal. Designed to withstand the use of artillery the castle has sloped walls and its overall height is lower than those of earlier castles, making it difficult and hard to target by cannon fire.
The Grajal de Campos Castle has a square plan with four corner towers covering all blind spots and it is located on the western edge of the village over a small hill. In this same village there is a renaissance palace owned by the same counts which is said to be linked by an underground tunnel with the castle.
To this day, the castle belongs to the actual Duke of Alburquerque, its interior is dismantled and can be visited.
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.