One of the most iconic buildings within Londonderry / Derry’s city walls completed a major £3.6 million refurbishment. St Columb’s Church of Ireland Cathedral is the Maiden city’s oldest building. Public Relations Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment. PreviousNext