Landskron castle itself was probably built in the early 13th century. Is first mentioned in 1244. This castle was destroyed in 1257 and 1275 by the rebellion Oppenheim citizens. It was rebuilt in 1281.
The castle burned down in 1621 during the Thirty Years War. In the Nine Years War, French troops blew up the keep in 1689 to keep. In the following years the citizens used the ruins as a quarry.
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.