You needn't be religious to appreciate the calming atmosphere of Catholic Cathedral. Inquire when the next mass starts or when it's open for general viewing.
Catholic Cathedral is an interesting place to begin your day of discovery in Alba Iulia. This principal church comes recommended by fellow travelers, but it isn't the only thing to do here. Pencil in time for other attractions like Alba Lulia Citadel, Cascada Pisoaia, and Roman Castrum Ruins to make the most of what the area has to offer.