Ardgowan Castle is located in the grounds of Ardgowan House near Inverkip. In 1306, Inverkip was besieged by supporters of Robert Bruce, led by Robert Boyd of Cunningham. In 1403, King Robert III granted the lands of Ardgowan to his natural son, Sir John Stewart. The castle is dated to the late 15th century.
In 1667 Archibald Stewart was created a baronet. The 3rd baronet married, in 1730, Helen Houston, heiress of the Shaws of Greenock. Their son Sir John Shaw-Stewart, 4th Baronet, commissioned a design for a new house from the architect Hugh Cairncross. Construction began in 1797, and was completed around 1801, after which the old castle was abandoned. The ruin was consolidated and repaired in 1936.
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.