Karlskirche (Saint-Charles church) is the most beautiful church baroque of Vienna, masterpiece of Fischer von Erlach, father and son. Charles VI made it build as a sign of gratitude at the end of the great plague in 1713 and it was dedicated to the patron of plague-stricken, the archbishop of Milan Charles Borromée. Its two immense columns are inspired by the trajan column of Rome and are decorated with spiral friezes which illustrate the life and the work of the lombardic saint.