Yugoslavia. City of Belgrade. Streets and squares. Types of architectural and historical monuments. Residents of Belgrade at the store of Soviet books, newsagents. View of the building of the Kolartz University, where the 1st Slavic Congress was held. Congress participants in the meeting room listen to speeches, applaud. Speakers: Marshal of Yugoslavia I. Broz Tito, Marshal of the Soviet Union F. I. Tolbukhin, head of the Bulgarian delegation Vilko Chervenkov, Polish delegate Professor Vartsykovich, representative of American Slavs Balakovich, delegate from Canadian Slavs Satulsky, Soviet historian B. D. Grekov and others. The presidium is Metropolitan Nikolai (Yarushevich) of Krutitsky and Kolomensky. Residents of Belgrade welcome the delegates to the congress on the square after the end of the congress. Participants of the congress during a visit to the cities of Zagreb, Ljubljana, the village of Vrba - the birthplace of the founder of Slovenian literature F. Preshern. Delegates visiting old frescoes and icons in the village church of Vrba. Types of streets and squares of the cities of Zagreb and Ljubljana. View of the territory of Yugoslavia from the train carriage. Meetings of the delegates of the congress at the railway stations.