San Colombano Castle originates probably from the 6th century AD, but if was mentioned first time in the 10th century. The current castle was built by Frederick I, Holy Roman Emperor (Federico Barbarossa). During his second visit to Italy, he destroyed the existing castle, but decided to build a new one in 1164. The next reconstruction began inĀ 1370. Later it has been conquered and rebuilt several times.
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.