The Dysert O Dea Monastic Site is home to the Dysert O Dea Church and the remains of a Round Tower. The most interesting parts of the church are the 13th century east window which is made up of 3 tall arches and the beautifully carved 12th century doorway. The doorway is made up of 4 different arches. The most significant arch is the first one which is made up of many faces (humans, dogs and even birds). The other 3 inner arches are carved with different patterns.