Eilean Donan castle, in the Scottish Highlands. © Guillaume Piolle / CC-BY-3.0.

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Eilean Donan Castle (Gaelic: Eilean Donnain) is a picturesque castle located on a small island of the same name in Loch Duich in the western Scottish highlands. Connected by a footbridge to the mainland,  it lies about a half-mile from the village of Dornie. The castle and the island were named after Donnán of Eigg, a Celtic saint and martyr. The castle was built in the 13th century, destroyed in the 18th century, and reconstructed in the 20th century. Eilean Donan Castle is the home of the Clan Macrae, a Scottish clan with no chief. The island is part of the Kintail National Scenic Area. Back in 2001, the island had a population of one person.