Guided Tours Schedule Dear visitors, tour guides and teachers, to get to know our St. Stephen’s Cathedral even better, we cordially invite you to take part in a guided tour of the cathedral and the catacombs, and to visit the two towers. Details of these tours are listed in the separate sub-items under this heading. If you decide to visit St. Stephen’s Cathedral with your own guide, we kindly ask you to observe the following tour schedule so as not to disturb church services: Monday to Saturday between 9 am and 11.30 am, and between 1 pm and 4.30 pm Sundays and Public Holidays between 1 pm and 4.30 pm