What is recorded here

Greencastle Martello Fort stands in County Donegal, a castle shaped like a tower rather than a hall. Its round walls and narrow footprint suggest a small garrison, a keeper, or a warning light for ships passing the coast. The sea may have decided the shape of the building, turning stone into a sentinel for greencastle itself.

Martello Tower is recorded as a castle in County Donegal. Its open map record supplies this location and any linked names or public references.

Built by the British during the Napoleonic Wars in the early 19th century, Greencastle Martello Fort was part of a defensive network against potential French invasion. It is remembered as a historical example of Martello tower architecture in Ireland.