thessaloniki, greece aerial drone view of empty international trade tif fair.

aerial antenna architecture balkans building business city communication crowd day drone ekthesi empty europe european exhibition exterior fair globalism greece greek helexpo hellas hellenic historic holiday international landmark macedonia macedonian mediterranean modern national ote outdoors panorama panoramic premises salonica salonika saloniki sightseeing sky south structure symbol symbols technology telecommunications thessaloniki tif tourism tower trade travel urban view visible white