In the 12th century on the hills above Škofja Loka stood three fortifications: the Upper Tower on Krancelj, the Lower Fort and the Loka Castle, a residence of Freising Bishops, built at the brink of a natural terrace. The castle is first mentioned in 1202 as castrum firmissimum, although today's building dates from the 16th century. The castle was rebuilt in 1691 after an earthquake and in 1716.
The castle was administered by Loka chiefs, among them Lambergs, Thurms, and Rasps. Since 1890 the castle has been managed by the Ursulines, who pulled down the Romanesque yard tower and transformed it into a school. Since 1959 it has hosted the Loka Museum.
The circular castle dominates above Škofja Loka town and presents the conclusion of the town walls. It can be dated after the earthquake in 1511, although some parts are older, which was confirmed during the renovation works in 2006–2008. The north-eastern tower, the oldest in the structure, is built on an older predecessor from the 10th century. Together with the renovation work the reconstruction of the primary entrance with a wooden drawbridge was also carried out.
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.