Along with community attitudes to religion, church architecture changed significantly during the 20th century. Urban churches such as that at the Wayside Chapel (1964) in Sydney differed markedly from traditional ecclesiastical designs. St Monica's Cathedral in Cairns was designed by architect Ian Ferrier and built in 1967–68 following the form of the original basilica model of the early churches of Rome, adapted to a tropical climate and to reflect the changes to Catholic liturgy mandated at Vatican 2. The cathedral was dedicated as a memorial to the Battle of the Coral Sea which was fought east of Cairns in May 1942. The "Peace Window" stained glass was installed on the 50th anniversary of the end of World War II.