Italian businessman Marcello De Finizio stands on the dome of St Peter's basilica to protest against austerity measures on May 21, 2013 at the Vatican.

Photographers gather around garden gnomes during the Chelsea Flower Show press day in London on May 20.

Decorated gnomes designed by celebrity figures Alan Titchmarsh, Elton John, Julian Fellowes and Lily Allen are displayed at Chelsea Flower Show on May 20 in London, England.

A worker ties together slabs of salt extracted from the Danakil Depression in northern Ethiopia April 22. Once the caravan find a suitable place to mine salt, they extract, shape and pack as many salt slabs as possible before starting their two-day journey to the town of Berahile. The Danakil Depression in Ethiopia is one of the hottest and harshest environments on earth, with an average annual temperature of 94 degrees Fahrenheit (34.4 Celsius). For centuries, merchants have travelled there with caravans of camels to collect salt from the surface of the vast desert basin. The mineral is extracted and shaped into slabs, then loaded onto the animals before being transported back across the desert so that it can be sold around the country.

A man walks with his camels through the Danakil Depression, northern Ethiopia April 22. Once the caravan find a suitable place to mine salt, they extract, shape and pack as many salt slabs as possible before starting their two-day journey to the town of Berahile. The Danakil Depression in Ethiopia is one of the hottest and harshest environments on earth, with an average annual temperature of 94 degrees Fahrenheit (34.4 Celsius). For centuries, merchants have travelled there with caravans of camels to collect salt from the surface of the vast desert basin. The mineral is extracted and shaped into slabs, then loaded onto the animals before being transported back across the desert so that it can be sold around the country.

A man lifts slabs of salt onto a truck in the town of Berahile in Afar, northern Ethiopia April 19. The Danakil Depression in Ethiopia is one of the hottest and harshest environments on earth, with an average annual temperature of 94 degrees Fahrenheit (34.4 Celsius). For centuries, merchants have travelled there with caravans of camels to collect salt from the surface of the vast desert basin. The mineral is extracted and shaped into slabs, then loaded onto the animals before being transported back across the desert so that it can be sold around the country.

A man walks on sulphur and mineral salt formations near Dallol in the Danakil Depression, northern Ethiopia on April 22.

A man prepares bars of salt to be sold in the main market of the city of Mekele, northern Ethiopia on April 24.

A topless FEMEN protester with an inscription on her body that reads "Life In Plastic Is Not Fantastic" holds up a burning cross with a Barbie doll attached to it outside the Barbie Dreamhouse Experience on May 16, 2013 in Berlin.

A man in a dress protests in front of the Barbie Dreamhouse after its opening near the Alexanderplatz in Berlin on May 16, 2013.

A Barbie doll is burned on a cross outside the Barbie Dreamhouse.

Chinese inventor Tao Xiangli welds a component of his self-made robot in the the yard of his house in Beijing on May 15

An Afghan fireman stands next to the debris of a car at the scene where a suicide car bomber attacked a NATO convoy in Kabul, Afghanistan, on May 16.

A U. S soldier secures the area where a suicide car bomber attacked a NATO convoy in Kabul on May 16.

A U.S. soldier arrives at the scene where a suicide car bomber attacked a NATO convoy in Kabul on May 16.

An Afghan man directs his children away from the scene of the attack.

A Palestinian sets fire to a tire during clashes between hundreds of Palestinians and Israeli soldiers outside the Ofer prison after a march marking the 65th Nakba day or "Day of Catastrophe" on May 15, in Betunia near the West Bank city of Ramallah.

A mounted Israeli policeman tries to disperse Palestinian protesters waving their national flag during clashes as demonstrators gathered outside Damascus gate in Jerusalem on May 15, to mark the 65th Nakba or "Day of Catastrophe"

A Palestinian protestor holds a Molotov cocktail and a lighter, ready to be used against Israeli security forces during clashes to mark Nakba Day near the West Bank city of Ramallah May 15. Palestinians clashed with Israeli forces in the occupied West Bank and at East Jerusalem on Wednesday during demonstrations to mark 65 years since what they call the Nakba (Catastrophe) when Israel's creation caused many to lose their homes and become refugees.

Palestinian protesters are stopped by Israeli soldiers during clashes after a rally marking Nakba Day in the Beit Omar village, north the West Bank city of Hebron, on May 15. Nakba Day is the annual day of commemoration of the displacement of Palestinians after the establishment of the state of Israel in 1948.

Men using sledgehammers on a Maserati car outside the Qingdao International Convention Center in Qingdao, Shandong province, on May 14, 2013.

Crowds looking at the badly damaged Maserati.

The mother of 22-year-old Ayten Calim mourns during her funeral in the town of Reyhanli in Hatay province, Turkey, near the Turkish-Syrian border on May 14. Calim was one of around 50 people to have been killed by two bomb attacks in Reyhanli over the weekend.

Relatives cover the body of 22-year-old Ayten Calim with a Muslim prayer rug and her wedding dress as they lower her into a grave in the town of Reyhanli in Hatay province, Turkey, near the Turkish-Syrian border on May 14.

People stand in a damaged building on May 14, at Reyhanli in Hatay, Turkey, just a few miles from the main border crossing into Syria. The death toll in twin car bombings in a Turkish town near the Syrian border has increased to 50 after another body was recovered and a victim died in hospital, the health minister was quoted as saying on May 14. The attacks also provoked a backlash against the nearly 400,000 Syrian refugees in Turkey. Government officials have repeatedly warned against provocations and said Turkey will maintain its open-door policy for Syrians fleeing the regime's crackdown.

A man works in a damaged building on May 14 at Reyhanli in Hatay, Turkey, just a few miles from the main border crossing into Syria.

Bangladesh army soldiers stand at the wreckage of the Rana Plaza garment factory to offer prayers for the souls of the 1,127 people who died in the collapse last month, in Savar, Bangladesh, on May 14, 2013.

A Bangladeshi woman cries holding the portrait of a missing relative as they gather to offer prayers for the people who died in the garment building structure collapse last month, in Savar, near Bangladesh, on May 14, 2013.

Tears roll down the cheeks of a Bangladesh army soldier in Savar, near Bangladesh, on May 14, 2013.

Bangladeshis display portraits of their missing relatives during a prayer ceremony, in Savar, near Bangladesh, on May 14, 2013.

A family member of a victim cries during a memorial for victims of the Rana Plaza building collapse last month, in Savar, near Bangladesh, on May 14, 2013.

An army soldier takes part in a prayer service in front of the damaged site after the end of the rescue work after 20 days following the Rana Plaza building collapse in Savar, Dhaka, Bangladesh, on May 14, 2013.

A policeman tries to control pigs left by protesters outside parliament in Nairobi, Kenya, during a demonstration against lawmakers' salary demands on May 14, 2013.

Protestors carry placards as they participate in a demonstration against lawmakers' salary demands in Nairobi on May 14, 2013.

A protester squats by piglets at the gates of parliament in Nairobi on May 14, 2013.

Kenyan activist Boniface Mwangi is arrested during a demonstration outside parliament in Nairobi on May 14, 2013. The protesters had intended to occupy parliament but were dispersed, while some were beaten by police and arrested.

Riot police stand by the gates of parliament during a demonstration against members of parliament who have demanded higher wages in Nairobi on May 14, 2013.

An aerial picture shows part of the route of the Arica-La Paz railway during its centennial commemoration, in Chile on May 13, 2013.

A conductor waits for passengers in Arica on May 13, 2013. Passenger services stopped running on the line in 1996, according to the BBC, but a special train ran to mark the railway's centenary.

Passengers ride on the Arica-La Paz railway during its centennial commemoration on May 13, 2013.

Passengers wait to board a train in Arica on May 13, 2013.