A woman takes a selfie in front of a multi-colored sheep installation displayed in a shopping mall for the Chinese New Year celebrations in Hong Kong, Feb. 18, 2015.
Philippe Lopez/AFP/Getty Images
Seagulls fly over the Bosphorus strait during heavy snowfall in Istanbul, Feb. 18, 2015.
Bulent Kilic/AFP/Getty Images
Varanasi widows play with colors to celebrate Holi at Assi Ghat, Feb. 20, 2015, in Varanasi, India.
Ajay Aggarwal/Hindustan Times/Getty Images
Emma Rogers, 11, and Great Dane "Joy" stand in the benching area at Pier 92 and 94 on the second day of competition at the 139th Annual Westminster Kennel Club Dog Show, Feb. 17, 2015, in New York City.
Timothy A. Clary/AFP/Getty Images
People holding umbrellas gather in Plaza de Mayo to demand answers from the government in the mysterious death of prosecutor Alberto Nisman one month ago in Buenos Aires, Argentina, Feb. 18, 2015.
AP Photo/Victor R. Caivano
Migrants arrive at the Temporary Permanence Centre, Feb. 19, 2015, in Lampedusa, Italy.
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Alex Chinneck at the launch of the Vauxhall Corsa at Southbank Centre, Feb. 19, 2015, in London.
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A woman wearing handcuffs, chains and a rosary holds a poster of jailed opposition leader Leopoldo Lopez at an event marking the one year anniversary of his arrest and imprisonment in Caracas, Venezuela, Feb. 18, 2015.
Ariana Cubillos/AP Photo
The American Falls are seen partially frozen, due to sub freezing temperatures, at Niagara Falls, Ontario, Feb. 17, 2015. Temperatures dropped to 6 degrees Fahrenheit with the National Weather Service issuing a wind chill warning in western New York.
Rafael Nadal of Spain eyes a ball in a match against Thomaz Bellucci of Brazil during their Rio Open tennis tournament match in Rio de Janeiro, Feb. 17, 2015.
Felipe Dana/AP Photo
Flamingoes at the Memphis Zoo huddle together for warmth in Memphis, Tenn., Feb. 17, 2015.
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A Hindu holy man, or sadhu, smokes marijuana in a chillum on the premises of Pashupatinath Temple in Kathmandu, Nepal, Feb. 17, 2015. Hindu holy men from Nepal and India come to this temple to take part in the Maha Shivaratri festival.
A Shadu, or holy man, looks into a mirror while applying paint to his face inside Pashupatinath temple during the celebration of the Maha Shivaratri festival, Feb. 17, 2015, in Kathmandu, Nepal. Close to one million devotees from different countries attended the festival.
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A trainer does exercises with white whales at the temporary enclosure of an oceanarium at Russky Island in Vladivostok, Russia, Feb. 17, 2015.
Children stand next to flowers laid at the cultural center in Copenhagen, Denmark, Feb. 17, 2015, following the weekend attacks.
Michael Probst/AP Photo
A man blows fire on a scarecrow with a mask depicting Russian president Vladimir Putin during celebrations to say farewell to winter in Uzhgorod, Ukraine, Feb. 15, 2015.
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A police officer stands in front of the cultural center where an alleged shooter killed one person on Feb. 14 in Copenhagen, Denmark, Feb. 16, 2015.
Michael Probst/AP Photo
Revelers wear traditional Cajun Mardi Gras costumes and masks on horseback during the Courir de Mardi Gras, Feb. 15, 2015, in Church Point, La. The event involves 900-hundred costumed revelers competing to catch a live chicken as they move from house to house throughout the rural community.
Richard Ellis/Getty Images
A woman wearing a prosthetic leg participates in a public photo session at the Hasselblad and Profoto booth during the CP+ camera and imaging equipment trade fair in Tokyo, Feb. 14, 2015. Japanese prosthetist Fumio Usui inspired the event after collaborating with photographer Takao Ochi in the book project "Amputee Venus" that portrays 11 Japanese women with artificial legs.
Blackburn's Rudy Gestede, left, goes for the ball against Stoke's goalkeeper Jack Butland during the English FA Cup fifth round soccer match at Ewood Park Stadium in Blackburn, England, Feb. 14, 2015.
Jon Super/AP Photo