Glencullen Standing StoneGlencullen Standing Stone is a standing stone and National Monument located in Glencullen, County Dublin, Ireland.LocationGlencullen Standing Stone is located on Barrack Road, Glencullen.HistoryThe stone is supposed to have been erected c. 1700 BC. Legend has it that Viking invaders used the stones in a game of "rings." It is also known as "Queen Mab."