Ruthven Barracks in Kingussie is a free well preserved ruin, that you can easily visit if you are in the area. It can even be combined with a hike in the beautiful Scottish Highlands in Cairngorm National Park. Ruthven Barracks is the best preserved of the four barracks built in 1719 by George II's government after the 1715 Jacobite (political movement) rising. It could hold two companies (120 soldiers and their officers).