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Castles and Ruins of Ireland

This collection spans thousands of years of Irish history across the northern counties of Donegal, Cavan, and Monaghan. It features Iron Age hillforts like Grianan of Aileach, medieval strongholds such as the 15th-century Donegal Castle and Doe Castle, and Neolithic megaliths including the Beltany Stone Circle and Kilclooney More portal tombs. These sites offer a direct look at the architectural evolution of the region, from prehistoric ritual landscapes to the defensive fortifications of the Gaelic clans and Anglo-Norman settlers.