A man bids farewell to his girlfriend through a train window at a railway station in Hefei, Anhui province January 6, 2012. Chinese New Year, or Spring Festival, is the biggest of two "Golden Week" holidays, giving migrant workers their only chance of the year to return to their home provinces with gifts for their families. More than 200 million people are expected to take to the railways over this year's holiday, the biggest movement of humanity in the world. REUTERS/Stringer

A giant light installation of the flag of Switzerland, by Swiss artist Gerry Hofstetter, illuminates the north face of the Jungfrau mountain, next to the Eiger (L) and Moench (C) mountains, in the Bernese Oberland January 1, 2012. The installation commemorates the 100-year anniversary of the Jungfrau railway, which first began operations in the year 1912. The light left of the installation is Europe's highest railway station, the Jungfraujoch station, at an altitude of 3,454 meters (11,332 feet). REUTERS/Markus Zimmermann

Anti-government protesters shout slogans while standing in front of laser beams emitted by riot police in the village of Diraz west of Manama, December 29, 2011. Hundreds of anti-government protesters took to the streets demanding the downfall of the regime. Riot police fired tear gas to disperse and prevent demonstrators from entering the main highway. REUTERS/Hamad I Mohammed

A protester throws a petrol bomb against riot police guarding the parliament in Athens' Syntagma (Constitution) square during clashes December 6, 2011. Greek police fired tear gas at dozens of black-clad protesters in Athens who hurled petrol bombs and stones, while hundreds marched to parliament to mark the 2008 shooting of a student by police.REUTERS/Yannis Behrakis

A pilgrim's feet are seen as he prays inside the Church of Virgen de lo Vasquez after completing his pilgrimage on the outskirts of Valparaiso City, about 93 km (58 miles) northwest of Santiago, December 8, 2011. Every year, hundreds of thousands of Christians make the pilgrimage to the sanctuary, walking for up to 50 km (32 miles) to reach the shrine, with some of them covering the final five or six kilometers barefoot or on their knees, to celebrate the Feast of the Immaculate Conception and to pay homage to the Virgin with their penances. REUTERS/Eliseo Fernandez

People are soaked while trying to enter a taxi in the financial district of Montevideo, Uruguay, December 30, 2011, where workers threw water at each other to celebrate the end of the year. Workers throw water at people and discard old calendars to mark the last working day of the year on December 30. REUTERS/Pablo La Rosa

A resident of the village of Wukan in Lufeng county, Guangdong, China, province carries a bucket of shellfish across a barricade blocking a bridge leading into the village December 20, 2011. REUTERS/David Gray

Fist fighters battle during the Musangwe, an age old tradition where men and boys display their fighting skills, at Gaba Village in Limpopo province, South Africa, December 22, 2011. The annual Venda fist-fighting run by community leaders, attracts hundreds of men who engaged in several weeks of bare-knuckled amateur fights in front of screaming audiences in the area. The sport, which began three centuries ago among young bored farmhands of the Venda tribe, attracts scores of spectators who often walk miles to cheer their favorites under the searing summer sun. REUTERS/Siphiwe Sibeko

 New Orleans Saints quarterback Drew Brees (9) celebrates after his team defeated the Atlanta Falcons in their NFL football game in New Orleans, Louisiana December 27, 2011. Brees passed for 307 yards while breaking the Single Season Passing record at 5,087 yards. REUTERS/Sean Gardner

A man plays with his dog near a beach in Fuengirola, southern Spain December 8, 2011. REUTERS/Jon Nazca