People lay down in a pedestrian zone as part of an art project in remembrance of 528 victims of the "Katzbach" Nazi concentration camp in Frankfurt

Kai Pfaffenbach/Reuters

People lay down in a pedestrian zone as part of an art project in remembrance of the 528 victims of the “Katzbach” Nazi concentration camp, in Frankfurt, on Monday

***BESTPIX*** Fracking In California Under Spotlight As Some Local Municipalities Issue Bans

David McNew/Getty Images

A burrowing owl stands next to its burrow near pump jacks in an oil field over the Monterey Shale formation where gas and oil extraction using hydraulic fracturing, or fracking, is on the verge of a boom.

RAAF searches Indian Ocean for MH370

EPA/Leading Seaman Justin Brown

Royal Australian Air Force loadmasters sergeant Adam Roberts and flight sergeant John Mancey launch a self-locating data marker buoy from a C-130J Hercules aircraft in the southern Indian Ocean as part of the Australian Defence Force’s assistance in the search for Malaysia Airlines flight MH370

Greece Financial Crisis

Thannasis Stavrakis/AP

A protester stands in front of riot police securing the private office of Kyriakos Mitsotakis, Greek public administration reform minister, in central Athens on Thursday. Scores of striking schoolteachers and other civil servants occupied Mitsotakis’s office to protest planned public sector lay-offs, under cost-cutting reforms demanded by the debt-mired country’s bailout creditors.

Spain Fallas

Alberto Saiz/AP

Satirical sculptures burn during the traditional Fallas festival in Valencia, Spain. Every year the city of Valencia celebrates the ancient “Las Fallas” fiesta, a noisy week that is full of fireworks and processions in honor of Saint Joseph that ends in the midnight of March 19.

People crowd onto a bridge during the annual Caiqiaohui event in Mianyang

Reuters

People crowd on to a bridge during the annual Caiqiaohui event in Mianyang, Sichuan province. People believe that by stepping on to the bridge during the three-day spring event can help them escape tribulations and illnesses.

People attend a rally called "We are together" to support the annexation of Ukraine's Crimea to Russia in Red Square in central Moscow

Maxim Shemetov/Reuters

People attend a rally to support the annexation of Ukraine’s Crimea to Russia in Red Square in central Moscow, on Tuesday. Russian President Vladimir Putin, defying Ukrainian protests and Western sanctions, signed a treaty making Crimea part of Russia but said he did not plan to seize any other regions of Ukraine. The flags display portraits of Russia’s President Vladimir Putin and read “We are together!

Anti-fracking protest at Barton Moss

Lynne Cameron/PA Wire

Protesters clash with police at the Barton Moss fracking site in Manchester

the Eiffel tower in central Paris through a haze of pollution.

Kenzo Tribouillard/AFP/Getty Images

Eiffel Tower in central Paris through a haze of pollution. More than 30 departments in France have been hit by maximum level pollution alerts since Thursday, prompting the ecology minister to say air quality was “an emergency and a priority for the government”.

The Canary Wharf financial district and central London emerge from morning fog in this aerial photograph released by the Metropolitan Police in London

Metropolitan Police/Reuters

The Canary Wharf financial district emerges from Thursday’s morning fog , with central London in the background