Health authorities with the help of the Cuban army fumigate against the Aedes aegypti mosquito to prevent the spread of zika, chikungunya and dengue in a street of Havana

Yamil Lage/AFP

Health authorities with the help of the Cuban army fumigate against the Aedes aegypti mosquito to prevent the spread of zika, chikungunya and dengue in a street of Havana

Protesters carry placards outside an Apple store

Steven Senne/AP

Protesters carry placards outside an Apple store in Boston to protest the FBI obtaining a court order that requires Apple to make it easier to unlock an encrypted iPhone used by a gunman in December’s shooting in San Bernardino

An Iraqi soldier stands in an armed vehicle as they are stationed on the Iraqi-Saudi border in Iraq's southern Samawah province

Haidar Hamdani/Getty Images

An Iraqi soldier stands in an armed vehicle as they are stationed on the Iraqi-Saudi border in Iraq’s southern Samawah province

Kosovo police officers weeraing  gas masks inspect the parliament, after tear gas was launched by opposition lawmakers, disrupting the first parliamentary session of the year

Armend Nimani/Getty Images

Kosovo police officers weeraing gas masks inspect the parliament, after tear gas was launched by opposition lawmakers, disrupting the first parliamentary session of the year

Worker inspects wheel of Parmesan cheese at storehouse shelf 4 Madonne Caseificio dell'Emilia dairy cooperative in Modena, Italy

Alessandro Bianchi/Reuters

Worker inspects wheel of Parmesan cheese at storehouse shelf 4 Madonne Caseificio dell’Emilia dairy cooperative in Modena, Italy

Daily Life, 1st prize singles, World Press Photo Awards (Kevin Frayer - China's Coal Addiction)Chinese men pull a tricycle in a neighborhood next to a coal-fired power plant in Shanxi, China, November 26, 2015

Kevin Frayer via WPP/Reuters

Daily Life, 1st prize singles, World Press Photo Awards (Kevin Frayer – China’s Coal Addiction) Chinese men pull a tricycle in a neighborhood next to a coal-fired power plant in Shanxi, China, November 26, 2015. 

A police officer gestures as he walks at the site of an explosion while firefighters try to extinguish flames after an attack targeted a convoy of military service vehicles in Ankara

AFP

A police officer gestures as he walks at the site of an explosion while firefighters try to extinguish flames after an attack targeted a convoy of military service vehicles in Ankara

An investor checks stock prices at a terminal in a securities company in Beijing

Greg Baker/AFP

An investor checks stock prices at a terminal in a securities company in Beijing

Attendees watch an Airbus A350 aircraft manufactured by Airbus SAS perform maneuvers during a flying display at the Singapore Airshow

Seong Joon Cho/Bloomberg

Attendees watch an Airbus A350 aircraft manufactured by Airbus SAS perform maneuvers during a flying display at the Singapore Airshow

Girls dressed as butterflies perform during a meeting of Pope Francis (not pictured) and youths at the Jose Maria Morelos y Pavon stadium in Morelia, Mexic

Carlos Garcia Rawlings/Reuters

Girls dressed as butterflies perform during a meeting of Pope Francis (not pictured) and youths at the Jose Maria Morelos y Pavon stadium in Morelia, Mexico

Public phone booths are covered with images of Pope Francis in downtown Mexico City

Marco Ugarte/AP

Public phone booths are covered with images of Pope Francis in downtown Mexico City 

People enter the Eminonu Mosque in Istanbul, Turkey

Chris McGrath/Getty Images

People enter the Eminonu Mosque in Istanbul, Turkey

Demonstrators protesting for an increase in the minimum wage enter the media file center at the PBS NewsHour Democratic presidential candidate debate at the University of Wisconsin-Milwaukee

Win McNamee/Getty Images

Demonstrators protesting for an increase in the minimum wage enter the media file center at the PBS NewsHour Democratic presidential candidate debate at the University of Wisconsin-Milwaukee

Traditional buildings of a tourist spot are seen lit up at night in Liaocheng, Shandong province

Reuters

Traditional buildings of a tourist spot are seen lit up at night in Liaocheng, Shandong province

Migrants and refugess build a church in the "jungle" of Calais

Philippe Hugen/AFP

Migrants and refugees build a church in the “jungle” of Calais

A woman is reflected in a puddle as she crosses a road in Minsk, during warm winter weather

Sergei Gapon/AFP

A woman is reflected in a puddle as she crosses a road in Minsk, during warm winter weather 

Performers go through a final dress rehearsal for the Royal Edinburgh Military Tattoo

Robert Cianflone/Getty Images

Performers go through a final dress rehearsal for the Royal Edinburgh Military Tattoo

A girl poses for pictures under decorated trees as the Chinese Lunar New Year, which welcomes the Year of the Monkey, is celebrated at Daguanyuan park, in Beijing

Damir Sagolj/Reuters

A girl poses for pictures under decorated trees as the Chinese Lunar New Year which welcomes the Year of the Monkey is celebrated at Daguanyuan park in Beijing

Believers pray around a cross-shaped platform covered with candles placed in jars of honey during a ceremony marking the day of Saint Haralam

Nikolay Doychinov/AFP

Believers pray around a cross-shaped platform covered with candles placed in jars of honey during a ceremony marking the day of Saint Haralampi, Orthodox patron saint of bee-keepers, at the Church of the Blessed Virgin in Blagoevgrad, eastern Bulgaria

Rescue workers and excavation vehicles carry out their rescue and search operation on what was the top (foreground) of the Wei-Kuan complex which collapsed in the 6.4 magnitude earthquake, in the southern Taiwanese city of Tainan

Anthony Wallace/AFP

Rescue workers and excavation vehicles carry out their rescue and search operation on what was the top (foreground) of the Wei-Kuan complex which collapsed in the 6.4 magnitude earthquake, in the southern Taiwanese city of Tainan