24 hours in pictures

Athens, Greece: A riot police officer is engulfed by flames from a petrol bomb thrown by protesters in front of parliament Photograph: Dimitri Messinis/AP

New Delhi, India: Founders of a free school for slum children Rajesh Kumar Sharma and Laxmi Chandra teach under a metro bridge Photograph: Altaf Qadri/AP

Sofia, Bulgaria: An East Orthodox nun kisses the hands of patriarch Maxim as she pays her respects during a memorial ceremony at St Nedelya cathedral Photograph: Valentina Petrova/AP

Damascus, Syria: The al-Hamidiyah market in the old city Photograph: Joseph Eid/AFP/Getty Images

Jammu, India: A homeless boy cleans his teeth with coal Photograph: Channi Anand/AP

Guatemala City, Guatemala: A Firefighter stand over a victim of the earthquake in San Marcos Photograph: Johan Ordonez/AFP/Getty Images

Beijing, China: Security guards keep watch as delegates walk towards the Great Hall of the People during the 18th national congress of the Communist party of China Photograph: Carlos Barria/Reuters

New York, USA: People walk through a darkened street where a fire destroyed a number of houses during superstorm Sandy, in Queens Photograph: Mario Tama/Getty Images

Rome, Italy: A bride waves at Pope Benedict XVI as he leaves Saint Peter's square at the Vatican Photograph: Tony Gentile/Reuters

Rio de Janeiro, Brazil: A police officer walks next to a man during an operation to take suspected crack addicts to shelters near the Parque Uniao slum Photograph: Felipe Dana/AP

Glen Etive, UK: Red deer hinds graze as the rutting season draws to a close in Scotland Photograph: Jeff J Mitchell/Getty Images

Hebron, West Bank: Palestinian children scavenge through a rubbish dump Photograph: Uriel Sinai/Getty Images

Sydney, Australia: Giraffes Jimiyo, Nyota and Zarafa at Taronga zoo Photograph: Damian Shaw/EPA

Paris, France: French writer Jerome Ferrari is surrounded by reporters after winning the Goncourt literary prize for his book Le Sermon sur la Chute de Rome (Sermon on the Fall of Rome) Photograph: Ian Langsdon/EPA

Vancouver, Canada: City worker Bob Clydesdale replaces burnt-out bulbs in light standards at the Victory Square war memorial Photograph: Andy Clark/Reuters

Tokyo, Japan: Women take pictures while sightseeing Photograph: Junji Kurokawa/AP