 A woman enjoys the sun on the bank of the Yenisei River, with the air temperature at about 13 Celsius (55.4 degrees Fahrenheit), in the Taiga district outside Russia's Siberian city of Krasnoyarsk April 6, 2015 (Photo: Reuters)
 Children play soccer on a floating soccer pitch, with the city skyline of the central business district in the background, along Marina Bay in Singapore April 6, 2015 (Photo: Reuters)
 Tulips are in bloom during the season's opening of Siraj Bagh, claimed to be the largest tulip garden in Asia, on Zabarwan Hills in Srinagar, India, Monday, April 6, 2015 (Photo: AP)
 Malaysia's landmark Petronas Twin Towers illuminates the night skyline in Kuala Lumpur, Malaysia, Monday, April 6, 2015 (Photo: AP)
 The full moon sets behind the Swiss Alps' mountains, in Charrat, Canton of Valais, Switzerland, at dawn Monday, April 6, 2015 (Photo: AP)
 Apricot trees in blossom are covered with ice in the Swiss Alps in Fully, Canton of Valais, Switzerland, Monday, April 6, 2015 (Photo: AP)
 Lightning strikes on the outskirts of Phnom Penh, Cambodia, Monday, April 6, 2015 (Photo: AP)
 Smoke rises after an explosion at a chemical plant that produces paraxylene, or PX, a chemical used in making polyester fibre and plastics, in Zhangzhou, Fujian province, April 6, 2015 (Photo: Reuters)
 The Oxford Men's Rowing team take part in a training session on the Thames river in London April 6, 2015 (Photo: Reuters(
 U.S. President Barack Obama, first lady Michelle Obama and the Easter Bunny kick off the annual Easter Egg Roll at the White House in Washington April 6, 2015 (Photo: Reuters)
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