Best pictures from May 1
A man walks past a snow-covered bed of tulips in downtown Golden, Colorado May 1, 2013. Shovels were out in Colorado on Wednesday, after a spring snowstorm dumped more than a foot of snow.RICK WILKING/Reuters
Riot police walk through a cloud of tear gas as they clash with May Day protesters trying to break through barricades to reach the city's main square in central Istanbul May 1, 2013. Turkish riot police clashed with thousands of May Day protesters in Istanbul on Wednesday, firing water cannon and tear gas at crowds that tried to break through barricades to reach the city's main square, witnesses said.MURAD SEZER/Reuters
A seagull takes off with someone's half eaten grilled cheese sandwich during the lunch hour in Vancouver May 1, 2013. Crowds gather in the area to buy their food from a nearby food truck that specializes in grilled cheese.ANDY CLARK/Reuters
A woman walks past a banner during the Afghanistan and Central Asia's only Arts Festival in Kabul, Afghanistan, Wednesday, May 1, 2013. The festival is held at the Esteqlal high school.Ahmad Jamshid/The Associated Press
A wind driven vegetation fire eats up timber at the Yellow Jacket Ranch east of Highway 128, early Wednesday May 1, 2013 in Knights Valley, Calif., on the Napa and Sonoma County line. Crews battled two small wildfires on Wednesday in California wine country that were pushed by gusty winds.Kent Porter/The Associated Press
Riot police stand guard in Bolivar square after the annual May Day march ended in clashes in Bogota, Colombia, Wednesday, May 1, 2013. In protests, parades, strikes and other demonstrations held in cities across the planet, activists lashed out at political and business leaders they allege have ignored workers' voices or enriched themselves at the expense of laborers during what has been a difficult few years for the global economy.Fernando Vergara/The Associated Press
Horses are washed after their morning workouts at Churchill Downs Wednesday, May 1, 2013, in Louisville, Ky.Charlie Riedel/The Associated Press
A demonstrator is detained during May Day rallies in Santiago May 1, 2013.IVAN ALVARADO/Reuters
BC Liberal leader Christy Clark tries her hand at drilling in a screw at Britco Ltd., maker of modular buildings, during a campaign stop in Penticton, B.C. on Tuesday, May 1, 2013. British Columbians will go to the polls May 14th.JIMMY JEONG/The Canadian Press
A young skater makes their way around the Canucks rink preparing for tonights opening ceremony in Vancouver May 1, 2013.John Lehmann/The Globe and Mail
Toronto Maple Leafs fan Cody Leite watches anxiously outside the Air Canada Centre in Toronto during game one of the NHL first round playoffs May 1, 2013.Moe Doiron/The Globe and Mail
Boston Red Sox outfielders Jonny Gomes, left, Jacoby Ellsbury, centre, and Daniel Nava, right, celebrate after defeating the Toronto Blue Jays during ninth inning AL baseball action in Toronto on Wednesday, May 1, 2013.Nathan Denette/The Canadian Press
A child wears a butterfly costume during a May Day demonstration in support of immigration rights in Oakland, California May 1, 2013.STEPHEN LAM/Reuters
Boys jump to a pond of polluted water in a slum area outside of Sanaa May 1, 2013.MOHAMED AL-SAYAGHI/Reuters
A view of a staircase in the new Mariinsky Theatre in St. Petersburg May 1, 2013. It has been variously described as a sleek piece of modernism or an ugly shopping centre, but whatever Russians think of the exterior of St Petersburg's new Mariinsky Theatre, they will finally get to see inside the much-debated building at its grand opening on Thursday.ALEXANDER DEMIANCHUK/Reuters