Gamburg Castle was built in the mid-12th century by arcbishops of Mainz. Unlike many other castles, Gamburg was indeed renovated several times, such as during the Renaissance, but it was never destroyed and was continuously inhabited. Even during the Peasants' War, it remained intact thanks to the personal intervention of Götz von Berlichingen, making it one of the few castles to do so.
At the center of the castle complex with an almost oval layout stands the Romanesque keep. Surrounding the inner courtyard are the former stables, the so-called Forester's House, and the opposite 'castle,' consisting of the chapel tower, the great hall (Palas), the Middle Building, and the Rear Building, which has housed a chapel since 1921. The inner castle was surrounded by a fortification with six semicircular shell towers, a round corner tower, an outer gate with two round towers, and the moat later transformed into a baroque castle park.
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.