The Church of the Immaculate Conception is a Roman Catholic church located in various places around the world, with notable examples in Dublin, Ireland and New York City, USA. It is dedicated to the belief in the Immaculate Conception, which teaches that the Virgin Mary was conceived without original sin. This doctrine is an important aspect of Catholic theology. The architecture of the church often features beautiful stained glass windows, intricate altars, and a serene atmosphere for worship. Many of these churches serve as community centers, hosting events and activities that strengthen the local Catholic community and promote spiritual growth.