editorial素材 - SOFIA, BULGARIA - APRIL, 30: National Palace of Culture is the largest multifunctional congress, conference, convention and exhibition centre in Southeastern Europe in Sofia, Bulgaria on April 30, 2013
SOFIA, BULGARIA - APRIL, 30: National Palace of Culture is the largest multifunctional congress, conference, convention and exhibition centre in Southeastern Europe in Sofia, Bulgaria on April 30, 2013