Floor plan of Kisimul Castle in 1887, Scotland, United Kingdom.
Own work - Source of data : 

Constructions : David MacGibbon et Thomas Ross, The Castellated and Domestic Architecture of Scotland from the twelfth to the eighteenth century, Robarts - University of Toronto, Édimbourg, 1887, 668 p. [1]
Scale and north arrow : File:Maps template-fr.svg
Locator map : File:Outer Hebrides UK blank map.svg
Rémih