#2982674The OPEC headquarters in Vienna.Sign in or register,to downloadAdd to cartRemove from cartCategories: Economy, Business & Finance, PoliticsLocation: Vienna, AustriaEvent date: 29.11.2016Date published: 29.11.2016Author: Alexey VitvitskySource: SputnikCredit: SputnikOriginal: DigitalMedia: JPEG, 6016x4016px, 4.4MbOPEC