The Rock of Cashel.
Built between 1101-1200, the 92 ft. round tower was a mainly used as a bell tower and lookout post. The wooden door is 12 ft. above the ground. Having the doorway lower would have weakened the structure. Tim was impressed with the stability of the tower since it's built on a very shallow foundation. He looks at things no one else would think to look at-hinges, joints, etc.
Ruth, Tim and Lucy all admiring what's left of the cathedral.