Luke and Carolyn Woods of Silver Spring, Md., pose for a photographer among the cherry blossoms trees in Washington, Tuesday, April 7, 2015. Luke and Carolyn were married 4 years ago and are retaking their wedding photos. Officials are calling for a peak bloom period from April 11-14th. (Andrew Harnik / Associated Press)
Rich Baranowski, left, and Tracy Hardy vote in Ferguson's municipal election Tuesday, April 7, 2015, in Ferguson, Mo. Three of the six city council seats are up for grabs in the St. Louis County town where 18-year-old Michael Brown, who was black, was fatally shot by a white Ferguson police officer in August. (Jeff Roberson / Associated Press)
An Indian farmer stands in a field as she harvests wheat crop that was partially damaged in unseasonal hailstorm and rain, on the outskirt of Ajmer, India, Tuesday, April 7, 2015. Unseasonal rainfall over large parts of northwest and central India caused widespread damage to standing crops. (Deepak Sharma / Associated Press)
A health worker administers a polio drop to an infant as part of Mission Indradhanush on World Health Day in Bhubaneswar, India, Tuesday, April 7, 2015. Mission Indradhanush is a nationwide campaign that aims to immunize all children against seven vaccine preventable diseases namely diphtheria, whooping cough, tetanus, polio, tuberculosis, measles and hepatitis. (Biswaranjan Rout / Associated Press)
A Pakistani boy, evacuated from Yemen by Pakistan Navy ship, is kissed by his father upon his arrival at Karachi port in Pakistan, Tuesday, April 7, 2015. A Saudi-led coalition targeting Shiite rebels in Yemen has asked Pakistan to contribute soldiers, Pakistan's defense minister said. Pakistan's parliament is debating the request and is expected to vote in coming days. (Shakil Adil / Associated Press)
A woman lights votive candles at a place where Boris Nemtsov, a charismatic Russian opposition leader and sharp critic of President Vladimir Putin, was gunned down on Feb. 27, 2015 near the Kremlin in Moscow, Russia, Tuesday, April 7, 2015. Supporters of Russian opposition politician Boris Nemtsov gathered at a Moscow bridge where he was gunned down Feb. 27 to commemorate 40 days since his death, a special day in the Orthodox Christian tradition. (Alexander Zemlianichenko / Associated Press)
View a gallery of photos from around the world on Tuesday, Apr. 7, 2015.