The town of Drogheda has many notable historical landmarks, of which the Boyne Viaduct with its fifteen stone arches is a relatively recent arrival.
Construction began in 1853 and lasted some two years. At the time, it was only the seventh bridge of its kind in the world.
The Viaduct carries the main Dublin-Belfast railway line. Prior to its opening, passengers had to alight from their train and make their way through the town to board another on the far side of the river.