Photo Gallery: Greece financial crisis: Nov. 1, 2011 12/20

A tourist walks on a rocky outcrop above the city of Athens, background, 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: ATH108