1. Croatian National Theatre (1895) – Trg Republike Hrvatske
Opened in person by none other than mister big whiskers himself Emperor Franz-Joseph I, the National Theatre still sports the kind of golden-mustard paint job that was all the rage during the Austro-Hungarian Empire’s belle époque. It was designed by Viennese theatre-building tandem Ferdinand Fellner and Hermann Helmer, who together built over 40 opera houses, concert halls and drama venues throughout Central and Eastern Europe between 1872 and 1913. They provided each project with the kind of Neo-Classical, Neo-Baroque, Neo-everything sense of grandeur that their provincial clients most wanted. It’s well worth grabbing tickets for a performance here in order to take in the fin-de-siècle opulence of the plush auditorium, lined by gilded boxes and balconies. Box office 10am-1pm Mon-Sat (01 48 88 415, www.hnk.hr)