of Zagreb's centre (largely the work of Milan Lenuzzio, 1860–1880) was revolutionary. Between the longest street, Ilica, and the new railway, streets were laid out in a grid pattern with large public and social buildings, such as the neo-renaissance Croatian Academy of Sciences and Arts (F. Scmidt, 1884), the neo-baroque Croatian National Theatre (H. Helmer and F. Fellner, 1895), and the very modern Art Pavilion (1898) with montage construction of steel and glass – Croatian "Crystal Palace", and finally the masterpiece of Art Nouveau – The National Library (Lubinski, finished in 1912). This urban plan is bounded by series of parks and parkways decorated with numerous fountains, sculptures, avenues and gardens (known as the "Green Horseshoe"). The building that emphasizes all three visual arts is the former Ministry of Worship and Education, now the Croatian Institute of History in Zagreb (Hermann Bollé, 1895). Along with rooms in Pompeii style and renaissance cabinet, the large neo-baroque "Golden Hall" contains historic paintings by Bela Čikoš-Sesija (The Baptism of Croats and Split Council), Oton Iveković (Meeting of Koloman and Croatian Nobility), Mato Celestin Medović (The Arrival of Croats), Vlaho Bukovac (Frantz Joseph in Zagreb) and decorated with reliefs by Robert Frangeš-Mihanović. "The Golden Hall" became a unified monument to its time, one of few in Europe. Realism appeared in the bourgeois portraits by Vjekoslav Karas. The characters of his portraits are true expressions of their time. Realistic landscapes are linked to certain parts of the country – Slavonian forests by artists of Osijek school, Dubrovnik in works of Celestin Medović, and Dalmatian coast in works of Menci Klement Crnčić. In sculpture the hard realism (naturalism) of Ivan Rendić was replaced by art nouveau composed and moving reliefs by Robert Frangeš-Mihanović. Slava Raškaj is particularly notable for her watercolours. Vlaho Bukovac brought the spirit of impressionism from Paris, and he strongly influenced the young artists (including the authors of "Golden Hall"). Right after he painted the screen in HNK in Zagreb with the theme of Croatian Illyrian Movement, and symbolic portraits of Croatian Writers in National Library, he founded The Society of Croatian Artists (1897), the so-called "Zagreb's colorful school". With this society the Croatian Modern Art started. On the Millennium Exhibition in Budapest they were able to set aside all other artistic options in Austria-Hungary. The 20th century Modern art in Croatia began with the secessionist ideas spreading from Vienna and Munich, and