Historic Environment Scotland (HES) is an executive non-departmental public body responsible for investigating, caring for and promoting Scotland's historic environment. HES was formed in 2015 from the merger of government agency Historic Scotland with the Royal Commission on the Ancient and Historical Monuments of Scotland (RCAHMS). Among other duties, Historic Environment Scotland maintains more than 300 properties of national importance including Edinburgh Castle, Skara Brae and Fort George.

Edinburgh Castle is a historic castle in Edinburgh, Scotland. It stands on Castle Rock, which has been occupied by humans since at least the Iron Age. There has been a royal castle on the rock since at least the reign of Malcolm III in the 11th century, and the castle continued to be a royal residence until 1633. From the 15th century, the castle's residential role declined, and by the 17th century it was principally used as a military garrison. Its importance as a part of Scotland's national heritage was recognised increasingly from the early 19th century onwards, and various restoration programmes have been carried out over the past century and a half.