If the Rock of Cashel boasted only Cormac's Chapel, it would still be an outstanding place. This compelling building dates from 1127 and the medieval integrity of its trans-European architec-ture survives. It was probably the first Romanesque church in Ireland. The style of the square towers that flank it to either side may reflect Germanic influences, but there are haunting simi-larities in its steep stone roof to the 'boat-hull' shape of older Irish buildings, such as the Gallarus Oratory in County Kerry and the beehive huts of the Dingle Peninsula. The true Romanesque splendour is in the detail of the exquisite doorway arches, the grand chancel arch and ribbed barrel vault, and the outstanding carved vignettes that include a trefoil-tailed grotesque and a Norman-helmeted centaur firing an arrow at a rampaging lion. The chapel's interior is tantalisingly dark, but linger for a while and your eyes will adjust. Inside the main door, on the left, is the sarcophagus said to house King Cormac, dating from between 1125 and 1150. Frescoes once covered the walls, but only vestiges of these survive. The south-ern tower leads to a stone-roofed vault and a croft above the nave (no access).