The Bishop's Palace, Kirkwall is a 12th-century palace built at the same time as the adjacent St Magnus Cathedral in the centre of Kirkwall, Orkney, Scotland. It housed the cathedral's first bishop, William the Old of the Norwegian Catholic church who took his authority from the Archbishop of Nidaros (Trondheim). The ruined structure now looks like a small castle.
Inverlochy Castle is a ruined, 13th-century castle near Inverlochy and Fort William, Highland, Scotland. The site of two battles, the castle remains largely unchanged since its construction. It is now in the care of Historic Environment Scotland.
Gilbertfield Castle is a ruined 17th-century castle in South Lanarkshire, Scotland. It is located at NS652587, on the north slope of Dechmont Hill, just outside Cambuslang, to the south-east of Glasgow.
Finavon Castle lies on the River South Esk, about a quarter of a mile south of Milton of Finavon village and five miles to the north-east of Forfar in Angus, Scotland. The name is applied both to a ruined 17th-century castle, as well as the 19th-century mansion house 130m to the west.
Dunnideer Castle, now ruined, was a tower house located near Insch, Aberdeenshire, Scotland. It was built c. 1260 partially from the remains of an existing vitrified hill fort in the same location. It consisted of a single rectangular tower of 15 m by 12.5 m with walls 1.9 m thick. Evidence suggests that a first-floor hall existed. Evidence shows it had several floors.
Borve Castle, also known as Castle Wearie, and Caisteal Bhuirgh in Scottish Gaelic, is a ruined 14th-century tower house, located at the south-west of the island of Benbecula, in the Western Isles of Scotland. The castle was designated as a Scheduled Monument in 1993.
Nether Horsburgh Castle is a ruined tower house near Cardrona, in the Scottish Borders, in the former county of Peebleshire. It is situated at the back of a farmstead, 3.5 miles (5.6 km) southwest of the market town of Peebles, at grid reference grid reference NT304396, on the A72 road. Access may be gained by permission from the adjoining farmstead, Nether Horsburgh Farm.
Banff Castle is a ruined former royal castle near Banff, Aberdeenshire, Scotland.
Dough Castle is a ruined tower house at Lahinch in County Clare, western Ireland. It was established by the O'Conors in the early 14th century, but nothing remains of the original structures.
Hallforest Castle is a keep, one of the oldest in Scotland, as it dates from the 14th century. It is about a mile and a half from Kintore, in Aberdeenshire.
Abergairn Castle is a ruined castle, dating from the 17th century, about one mile north of Ballater, Aberdeenshire, Scotland. It is built on the top of an isolated kame, at the north-east of the entrance to Glen Gairn.
Almond Castle is a ruined L-plan castle dating from the 15th century. It is located 3 miles (4.8 km) west of Linlithgow, and north of the Union Canal, in Falkirk, Scotland. It was known as Haining Castle until the 17th century. The structure is unsound and is protected as a scheduled monument.
Thurso Castle is a ruined 19th-century castle, located in Thurso, Caithness, in the Scottish Highlands. Situated in Thurso East, off Castletown Road, east of the River Thurso, the site can be seen from across the river. The current castle ruins date to 1872; A large part was demolished in 1952, although there has been a fortress here since the 12th century. Part of the castle is still habitable and remains a home of the Viscounts Thurso.
Findochty Castle is a ruined 16th century L-plan tower house, near Findochty, Moray, Scotland, about 2.5 miles (4.0 km) north-east of Buckie, and about 0.25 miles (0.4 km) from the sea to the north.
Keith Inch Castle was a 16th-century L-plan tower house and courtyard, about 1.0 mile (1.6 km) east of Peterhead, Aberdeenshire, Scotland. It stood on Keith Inch, to the north of Peterhead Bay.
Mar's Castle, also referred to as the Old Castle or Bishop's Palace, was a medieval castle in Aberdeen, Scotland, to the south of the old town, and about 0.5 miles (0.80 km) west of the sea.
Castle Croft was located near New Leslie farm, about 5 kilometres (3.1 mi) south-west of Insch, in Aberdeenshire, Scotland. It was the property of the Leslie family from the later 15th century. By the early 17th century, it was the residence of the Leith family, before they built and occupied Leith Hall from 1650. The castle is recorded as being in ruins in 1724, and the final remains were removed in 1842. No trace of the castle can be seen today.
Towie Castle was a 17th-century tower house, about 3.5 miles (5.6 km) south-west Kildrummy, Aberdeenshire, Scotland, south of the river Don.
Cobairdy Castle was a 16th-century tower house, about 4 miles (6.4 km) north-east of Huntly, Aberdeenshire, Scotland, west of Burn of Connairdy. It may have been built as early as 1500.
Colquhonnie Castle is a ruined 16th-century tower house, about 10.5 miles (16.9 km) north of Ballater, Aberdeenshire, Scotland, around 1.0 mile (1.6 km) east of Strathdon, north of the River Don, Aberdeenshire. The alternative spelling is Colquhonny. The castle is designated as a scheduled monument.
