The sun rises before the 20th Remembrance Ceremony, the anniversary ceremony for victims of the 1995 Oklahoma City bombing, at the Oklahoma City National Memorial and Museum in Oklahoma City, Oklahoma April 19, 2015 (Photo: Reuters)
A woman takes 'selfies' on a camera phone along an avenue of cherry trees coming into blossom in Greenwich Park, south London, April 19, 2015 (Photo: Reuters)
A man rides a horse at a playground on a hill in Kabul April 19, 2015 (Photo: Reuters)
Participants take part in the Color Run near the Eiffel Tower in Paris April 19, 2015 (Photo: Reuters)
North Korean leader Kim Jong Un views the dawn from the summit of Mt Paektu April 18, 2015, in this photo released by North Korea's Korean Central News Agency (KCNA) on April 19, 2015 (Photo: Reuters)
A view of the dawn from the summit of Mt Paektu April 18, 2015 in this photo released by North Korea's Korean Central News Agency (KCNA) on April 19, 2015 (Photo: Reuters)
A Pakistani family sit with their pet cubs in Multan, Pakistan, Sunday, April 19, 2015 (Photo: AP)
Warsaw residents and members of the Jewish community attend observances of the 72nd anniversary of the Warsaw Ghetto Uprising, in front of the monument to the Heroes of the Ghetto, with its burning torches, in Warsaw, Poland, on Sunday, April 19, 2015 (Photo: AP)
A general view shows the central court of the Monte Carlo Country Club during the final tennis match at the Monte Carlo Masters between Novak Djokovic of Serbia andTomas Berdych of the Czech Republic in Monaco April 19, 2015 (Photo: Reuters)
Fans of Pumas celebrates after Gerardo Alcoba scored a goal during a Mexican soccer league match in Mexico City, Sunday, April 19, 2015 (Photo: AP)