Clonmacnoise (the Irish Cluain Mhic Nos) is an ancient ecclesiastical site, situated south of Athlone, near the centre of Ireland. Its location contributed to its development as a major centre of religion, learning, trade, craftsmanship and political influence. Clonmacnoise has a large collection of grave-slabs dating from the 8th to the 12th century, as well as one of Ireland's finest surviving High Crosses. In addition, the monastery contains many religious buildings.