St John the Baptist Cathedral, Sligo or more properly the Cathedral of St Mary the Virgin and St John the Baptist, Sligo but also known as Sligo Cathedral is one of two cathedral churches in the diocese of Kilmore, Elphin and Ardagh in the Church of Ireland. It is situated in the town of Sligo, Ireland in the ecclesiastical province of Armagh.
The church was built as St John's Church in the mid-18th century to the design of architect Richard Cassels, who adopted a basilica pattern from Roman architecture.
Wikipedia https://en.wikipedia.org/wiki/St_John_the_Baptist_Cathedral,_Sligo
Address 60 John Street, Sligo F91 AH39, Ireland
Coordinates 54°16'12.341" N -8°28'38.416" E