Article Photos: Greek turmoil roils markets 17/24

A shopowner unhooks a Greek flag as he prepares to shut down for the evening in the Plaka area of central  Athens, on Tuesday, Nov. 1, 2011. Markets plunged Tuesday and Greece's beleaguered Socialist government faced collapse, a day after Prime Minister George Papandreou unexpectedly announced plans to hold a referendum on the latest international debt relief and bailout deal for his country. (AP Photo/Petros Giannakouris) ORG XMIT: ATH105