Dublin on Wikipedia.

Christ Church Cathedral (C.I.), properly The Cathedral Church of the Holy Trinity. Another view. Both © Aidan Thomson. Link.

Sacred Heart (R.C.) at Donnybrook. © Aidan Thomson.

St. Bartholomew (C.I.) at Ballsbridge. © Aidan Thomson.

St. Joseph (R.C.) at Terenure. © Aidan Thomson.

St. Patrick's Cathedral (C.I.), from an old postcard, Bulman Collection. A modern view. © Aidan Thomson. Link.

St. Peter (R.C.) at Phibsborough. © Aidan Thomson.