Marco at night =n Venice , on November 1, 2012. (Reuters/Manuel Silvestri) 22 Piazza San Marco in Venice , flooded at night, on November 1, 2012. (Reuters/Manuel =ilvestri) 23 A man walks through the flooded Piazza San Marco in =stl:city w:st="on">Venice=, on October 31, 2012. (Olivier Morin/AFP/Getty Image