Europe

A member of the Patrouille Suisse flight team of the Swiss Air Force performs in his Northrop F-5 ll Tiger fighting jet during a media day of the Swiss Air Force at the airbase in the central Swiss town of Emmen April 17, 2015.

Arnd Wiegmann/Reuters

A member of the Patrouille Suisse flight team of the Swiss Air Force performs in his Northrop F-5 ll Tiger fighting jet during a media day of the Swiss Air Force at the airbase in the central Swiss town of Emmen on Friday

The greenhouses are seen on the grounds of the Belgian royal family residence of Laeken in Brussels April 17, 2015. The royal family opens its interlocking greenhouses with their wide array of flowers to the public every year, for a duration of three weeks.

Yves Herman/Reuters

The greenhouses are seen on the grounds of the Belgian royal family residence of Laeken in Brussels on Friday. The royal family opens its interlocking greenhouses with their wide array of flowers to the public every year, for a duration of three weeks

Ukrainian military pilot Nadezhda Savchenko stands inside a defendants' cage as she attends a court hearing in Moscow April 17, 2015. Pro-Russian separatists battling Kiev's forces captured Savchenko last June and handed her over to Moscow, where she is being held on charges of aiding the killing of two Russian journalists in eastern Ukraine

  © Maxim Zmeyev/Reuters

Ukrainian military pilot Nadezhda Savchenko stands inside a defendants’ cage as she attends a court hearing in Moscow. Pro-Russian separatists battling Kiev’s forces captured Savchenko last June and handed her over to Moscow, where she is being held on charges of aiding the killing of two Russian journalists in eastern Ukraine.

 Immigrants wait to apply for political asylum at the asylum service office in Athens, Greece, 16 April 2015. According to the Greek coast guard, the number of undocumented migrants entering Greece by sea reached 10,445 people in the first quarter of 2015, compared to 2,863 people for the same period last year. In March, 6,498 migrants managed to reach the shores of Greece's eastern Aegean islands alone, with Lesvos, Chios, Leros and Samos being their main destinations.

Simela Pantzartzi/EPA

Immigrants wait to apply for political asylum at the asylum service office in Athens, Greece

People relax in the sun in the gardens of the Palais Royal in Paris on April 15, 2015.

Loic Venance/AFP

People relax in the sun in the gardens of the Palais Royal in Paris on Wednesday

An aerial view of flower fields is seen near the Keukenhof park, also known as the Garden of Europe, in Lisse, The Netherlands on Wednesday. Keukenhof, employing some 30 gardeners, is considered to be the world's largest flower garden displaying millions of flowers every year

Yves Herman/Reuters

An aerial view of flower fields is seen near the Keukenhof park, also known as the Garden of Europe, in Lisse, The Netherlands on Wednesday. Keukenhof is considered to be the world’s largest flower garden displaying millions of flowers every year

A protester jumps on the table in front of the European Central Bank President Draghi during a news conference in Frankfurt...A protester jumps on the table in front of the European Central Bank President Mario Draghi during a news conference in Frankfurt, April 15, 2015. The news conference was disrupted on Wednesday when a woman in a black T-shirt jumped on the podium.   REUTERS/Ralph Orlowski  TPX IMAGES OF THE DAY

Ralph Orlowski/Reuters

A protester jumps on the table in front of the European Central Bank President Mario Draghi during a news conference in Frankfurt. The news conference was disrupted on Wednesday when a woman in a black T-shirt jumped on the podium. 

A woman walks past a piece of street art in Shoreditch, east London...A woman walks past a piece of street art in Shoreditch, east London, April 14, 2015.  REUTERS/Cathal McNaughton TPX IMAGES OF THE DAY

Cathal McNaughton/Reuters

A woman walks past a piece of street art in Shoreditch, east London 

US Marines stand at attention during the military exercise 'Platinum Lion 15-2' at the Novo Selo military base near the town of Sliven, some 290 kms from Sofia, Bulgaria on Tuesday. Bulgaria and the US are holding the joint military training at the Novo Selo site in Eastern Bulgaria, as part of the Bulgarian-American plan for joint military trainings and exercises scheduled in 2015

Vassil Donev/EPA

US Marines stand to attention during a military exercise at the Novo Selo military base near the town of Sliven, 290 km from Sofia, Bulgaria

Two actors dressed as roboters hold up an illuminated 4 - 0 lettering at the "Leaders Dialogue - Industry 4-0 Made in Germany" during the launch of the "Industry 4-0" platform at the Hannover Messe industrial trade fair in Hanover, central Germany.

Ole Spata/DPA/AFP

Two actors dressed as robots at the launch of the Industry 4-0 platform at the Hannover Messe industrial trade fair in Hanover, Germany

Stars are pictured over the famous Matterhorn mountain, seen from the Riffelberg area, in Zermatt, Switzerland.

Jean-Christophe Bott/Keystone/AP

Stars seen in the sky over the Matterhorn mountain, seen from the Riffelberg area, in Zermatt, Switzerland

A Bulgarian Orthodox priest leads an annual religious march marking the second day of Easter at the Bachkovo monastery on on April 13, 2015.

Nikolay Doychinov/AFP

An Orthodox priest leads an annual religious march marking the second day of Easter at the Bachkovo monastery in Bulgaria on Monday.

The sun rises off the North East coast near Cullercoats bay in North Tyneside, as Britain is set to bask in its hottest temperatures of the year so far, with the mercury expected to soar higher than in parts of Spain this week.

Owen Humphreys/PA

The sun rises off the northeast coast near Cullercoats Bay in North Tyneside, as Britain is set to bask in its hottest temperatures of the year.

German Chancellor Merkel and Indian Prime Minister Modi look at a UMI robotic arm at the world's largest industrial technology fair, the Hannover Messe, in Hanover...German Chancellor Angela Merkel and Indian Prime Minister Narendra Modi (R) look at a UMI robotic arm at the world's largest industrial technology fair, the Hannover Messe, in Hanover April 13, 2015.

Wolfgang Rattay/Reuters

German Chancellor Angela Merkel and Indian Prime Minister Narendra Modi look at a UMI robotic arm at the world’s largest industrial technology fair, the Hannover Messe, in Hanover.

Ukrainian servicemen take part in a military drill in the Zhytomyr region, some 150 kms from Kiev

Anatolii Stepanov/AFP/Getty Images

Ukrainian servicemen take part in a military drill in the Zhytomyr region, 150 km from Kiev 

French Prime Minister Manuel Valls (R) t...French Prime Minister Manuel Valls (R) tests out a machine at the factory of Haulotte, which manufactures people and material lifting equipment, in Saint-Etienne on April 9, 2015. AFP PHOTO / JEFF PACHOUDJEFF PACHOUD/AFP/Getty Images

Jeff Pachoud/AFP/Getty

French Prime Minister Manuel Valls tests out a machine at the factory of Haulotte, which manufactures material lifting equipment, in Saint-Etienne

French Labour Minister Francois Rebsamen...French Labour Minister Francois Rebsamen attends the presentation of a government plan to encourage investment at the Elysee Palace in Paris on April 8, 2015. Prime Minister Manuel Valls announced today a five-year, 2.5 billion euro (2.7 billion USD) programme of tax breaks to encourage industrial investment and accelerate France's sluggish growth rate.  AFP PHOTO / POOL / PHILIPPE WOJAZERPHILIPPE WOJAZER/AFP/Getty Images

Philippe Wojazer/AFP/Getty

French Labour Minister Francois Rebsamen attends the presentation of a government plan to encourage investment at the Elysee Palace in Paris

Pope Francis Pope presides over Chrism Mass in St. Peter's Basilica, at the Vatican Thursday, April 2, 2015. (AP Photo/Gregorio Borgia)

Gregorio Borgia/AP

Pope Francis presides over Chrism Mass in St. Peter’s Basilica, at the Vatican 

A woman is reflected in a puddle as she walks alongside the bank of the river Main in Frankfurt, Germany

Christoph Schmidt/dpa/AP

A woman is reflected in a puddle as she walks alongside the bank of the river Main in Frankfurt, Germany

***BESTPIX*** World's Most Dangerous Footpath Set To Reopen In Spain...MALAGA, SPAIN - APRIL 01:  Tourists walk along the 'El Caminito del Rey' (King's Little Path) footpath on April 1, 2015 in Malaga, Spain. 'El Caminito del Rey', which was built in 1905 and winds through the Gaitanes Gorge, reopened last weekend after a safer footpath was installed above the original. The path, known as the most dangerous footpath in the world, was closed after two fatal accidents in 1999 and 2000. The restoration started in 2011 and reportedly cost 5.5 million euros.  (Photo by David Ramos/Getty Images) ***BESTPIX***

David Ramos/Getty

Tourists walk along the ‘El Caminito del Rey’ (King’s Little Path) in Malaga, Spain. ‘El Caminito del Rey’. It was built in 1905 and reopened last weekend after a safer footpath was installed above the original. The path, known as the most dangerous footpath in the world, was closed after two fatal accidents in 1999 and 2000. The restoration started in 2011 and reportedly cost 5.5 million euros.