photo of the entrance to the ioannis vellidis convention center (vellidio) in thessaloniki, greece.

telecommunications international mediterranean thessaloniki architecture thessalonica photography sightseeing thesaloniki convention background exhibition television editorial landscape macedonia makedonia structure wallpaper entrance vellidis vellidio capacity backdrop exterior salonica salonika saloniki ioannis largest central helexpo stratou velidio website center greece people avenue banner facade pirgos pyrgos thrace photo greek tower trade white 2400 blue fair ote sky web