Many of the Catholic churches in inner city Dublin are built in epic architectural proportions. Clearly they were built to cater for what was once one of the most devout working class populations in western Europe. Go to Mass there on a Sunday morning now, and you notice that the church is nowhere near as full as it was twenty/thirty years ago, the congregation is older (with a smattering of young families) and the number of services during the day is dropping. Yet in recent years there has been a burgeoning of new parishioners arriving from the East. Notably from Poland.