The Rock of Cashel also known as Cashel of the Kings and St. Patrick's Rock, is a historic site located at Cashel, South Tipperary, Ireland.
The oldest and tallest of the buildings is the well preserved round tower (28 metres, or 90 feet), dating from c.1100. Its entrance is 12 feet from the ground, necessitated by a shallow foundation (about 3 feet) typical of round towers. The tower was built using the dry stone method. Modern conservationists have filled in some of the tower with mortar for safety reasons.
The entire plateau on which the buildings and graveyard lie is walled. In the grounds around the buildings an extensive graveyard includes a number of high crosses. Scully's Cross, one of the largest and most famous high crosses here, originally constructed in 1867 to commemorate the Scully family, was destroyed in 1976 when lightning struck a metal rod that ran the length of the cross. The remains of the top of the cross now lie at the base of the cross adjacent to the rock wall.