German Foreign Minister Frank-Walter Steinmeier (L) and Russian Foreign Minister Sergei Lavrov attend a photo opportunity at the venue of nuclear talks in Vienna, Austria, June 30, 2015. Iran and six world powers gave themselves an extra week to reach a final nuclear accord after it became clear they would miss a deadline on Tuesday, with U.S. and Iranian officials sounding upbeat even though obstacles remain. REUTERS/Heinz-Peter Bader TPX IMAGES OF THE DAY