X-Plane 10 Scenery--LBWN Varna Airport. Varna Airport is the airport of Varna, the historical maritime capital of Bulgaria. Varna Airport is the third largest airport in Bulgaria. Requires Flags of the World (FLAGS_OF_THE_WORLD.ZIP), FF Library (extended) (FF_LIBRARY_EXTENDED_LOD.ZIP), OpenSceneryX (OPENSCENERYX.ZIP), R2 Library (R2_LIBRARY.ZIP) and RuScenery (RUSCENERY.ZIP). By Magnus Askerlund.