Photos of the day - October 21, 2013

Demonstrators are pictured through a National Force soldier's shield on Barra da Tijuca beach near the Hotel Windsor, where the auction for Libra offshore oilfield will take place, in Rio de Janeiro October 21, 2013. Brazil geared up on Monday to sell production rights to Libra, its largest-ever oil discovery, in a landmark auction that sparked widespread nationalist protests even though most of the world's premier energy companies opted to stay away. (REUTERS/Ricardo Moraes)

Presidential candidate Nino Burjanadze addresses her supporters during an election rally in the town of Gori, some 80 km (50 miles) west of Tbilisi, October 21, 2013. Georgia's presidential election will be held on October 27. (REUTERS/David Mdzinarishvili)

A statue of China's late Chairman Mao Zedong is pictured on a smoggy day in Shenyang, Liaoning province, October 21, 2013. Heavy smog covered most major cities in northeastern China on Monday morning, according to local media. The visibility in Shenyang is less than 200 metres (0.12 miles). (REUTERS/Stringer)

Local resident Delia Smith (L) reacts as she inspects her family's house with her husband Colin after it was destroyed by a bushfire in the Blue Mountains suburb of Winmalee, located around 70 km west of Sydney, October 21, 2013. More than 200 homes have been destroyed since last Thursday as scores of fires burned through thousands of hectares of bush, farms and rural communities outside Sydney. A state of emergency has been declared in New South Wales (NSW) state, Australia's most populous. Forecasts for a return of hot, windy weather later this week has raised fears that three of the most dangerous blazes in the Blue Mountains west of Sydney could join up to form a massive "mega-fire", according to the New South Wales Rural Fire Service. (REUTERS/David Gray)

A woman practices ballroom dancing during a morning exercise session at the Temple of Heaven park in Beijing, October 21, 2013. The Temple of Heaven park is where the emperors of the Ming and Qing dynasties held prayers to the heavens for good harvests. The Temple of Heaven was inscribed as a UNESCO World Heritage Site in 1998 and is now a popular tourist spot. It is also a popular park for exercising. (REUTERS/Kim Kyung-Hoon)

Small rubber ducks are released on a river during a donation drive in Shenzhen, Guangdong province, October 20, 2013. The organizer charged 10 yuan ($1.64) for the release of each duck toy, and raised around 500,000 yuan ($82,050) for several of the cities' charity programs. Picture taken October 20, 2013. (REUTERS/China Daily)

People walk past to the newly painted artwork of contemporary German Pop artist Jim Avignon at the open air 0.8-mile painted section of the Berlin Wall known as the "East Side Gallery" in Berlin October 21, 2013. Over the weekend Avignon painted over his original 1990 mural "Doin It Cool For The East Side", during a performance. (REUTERS/Fabrizio Bensch)

A protester plants a tree on a road at a construction site as riot police surround him, during a demonstration against reconstruction plans that include a part of the Middle East Technical University campus in Ankara October 21, 2013. The municipality plan, opposed by the students, involves building a road across the Middle East Technical University campus and uprooting a large number of trees in the area. (REUTERS/Umit Bektas)