The Church of St Donatus is the iconic image of Zadar — a tall, round, almost windowless drum of pale stone, rising in three storeys from the corner of the Roman forum. It is one of the most important pre-Romanesque buildings in the eastern Adriatic and the largest of its type along the Croatian coast.
Inside, the space is austere and lofty, with three apses arranged around a central circle and a gallery overhead. The acoustics are extraordinary; if a concert is scheduled during your visit, go. Tickets sell out, especially in July and August.