The doorway
Built around 1150–60, probably for Diarmait MacMurchada, King of Leinster. The doorway is carved from three types of stone—purple sandstone, yellow granite, and lighter granite. Every inch is worked: chevrons, zigzags, animal and human heads on the capitals, foliage, interlocked patterns. The inscriptions mention a master stonemason named Cellachan. It looks like someone's life's work.