Dating from the early 13th century, St Mary's Church has been converted into a fascinating modern museum that charts the history of Kilkenny in medieval times. Highlights include the Rothe Chapel, lined with ornate 16th- and 17th-century tombs carved from local limestone, remnants of the 17th-century timber roof above the crossing, and a selection of 13th- and 14th-century grave slabs. A huge interactive map of Kilkenny allows you to explore maps and documents relating to the medieval city.