Dancers perform at an open audition to join the Rockettes troupe at New York City's Radio City Music Hall, on April 30. Hundreds of aspiring dancers try out each year for a spot to star in the Radio City Christmas Spectacular.
President Barack Obama and former presidents George W. Bush, Bill Clinton, George H.W. Bush and Jimmy Carter at the dedication of the George W. Bush Presidential Center on April 25, in Dallas.
A survivor emerges from the rubble a day after a building housing garment factories collapsed April 25 near Dhaka, the capital of Bangladesh. The disaster left more than 400 dead after a huge section of the eight-story structure splintered into a pile of concrete.
Four days after the April 24 collapse of a Bangladeshi building housing garment factories, workers attempt to locate survivors.
A woman grieves April 30 as she places a portrait of a family member on the wall of a school turned makeshift morgue near the collapsed Bangladeshi garment factory building.
•See PhotoBlog stories about the Bangladesh building collapse.
West, Texas, resident Brian Kaska picks through the rubble of his devastated home April 29, 12 days after a fertilizer plant explosion that killed 14 and injured more than 200.
Workers set up a dust screen April 27 at a building site in Xi'an, central China. After years of severe pollution, the city recently passed an ordinance requiring construction companies to control airborne particles.
Willem-Alexander, the new king of the Netherlands, kisses his mother, Queen Beatrix, while his wife, Maxima, watches on a balcony of the Royal Palace in Amsterdam, on April 30. Willem-Alexander, 46 years old, became Europe's youngest monarch after his mother abdicated at age 75.
A 54-foot inflatable rubber duck made by Dutch conceptual artist Florentijn Hofman floats at Hong Kong's Victoria Harbour May 2. "The Rubber Duck knows no frontiers, it doesn't discriminate... and doesn't have a political connotation," the artist said on his website.