This Georgian building houses the headquaters of the Irish Post Ofiice. Though an adjacent museum of letters was closed, you can still see some parts of the exhibition.
Mon - Sat: 8:30 am - 6 pm
Official website http://www.anpost.ie/AnPost/History+and+Heritage/Home/
Phone +353 17057000
Address O'Connell Street Lower, D01 F5P2 Dublin
Coordinates 53°20'57.273" N -6°15'37.759" E