A Yemeni artist sprays graffiti on a wall in protest against the ongoing conflict and the worsening economic situation in the war-affected country, in Sanaa, Yemen. Photo Yahya Arhab/ EPA
A Yemeni walks past graffiti protesting US drone operations in Yemen, few hours after a US drone attack on suspected al-Qaeda militants
A construction worker moves a traffic cone in front of artwork by Odeith and is part of the 2016 Upfest in Bristol, England. The annual event, which this year helped celebrate 45 years of the Mr Men and Little Miss book series, started in 2008 and is said to be the largest free street art and graffiti festival in Europe.
Graffiti artists Oguz Sen (L) and Justus Becker (R) make the finishing touches to a new mural of drowned refugee Aylan Kurdi, at Osthafen in Frankfurt Main, Germany.
A graffiti mural of boxer Muhammad Ali and singer Prince – who would have been 58 today – in Camberwell, south London
A woman walks past street art in Beirut, Lebanon
Two men sitt in front of a graffiti by British street artist Banksy, in the West Bank city of Bethlehem
“Oui” (Yes) is seen written on the walls of a polling station, where a soldier of the UN peacekeeping force MINUSCA contingent is on guard on Monday
A pedestrian pass by graffiti in honour to the victims of the Paris terrorist attacks made by Kazakhstani artist called ‘ChemiS’ in Prague, Czech Republic on Wednesday
A boy stands by a wall sprayed with a graffiti depicting Russia’s President Vladimir Putin in the Crimean city of Simferopol on Tuesday.
A Lebanese activist paints graffiti on a concrete wall installed by authorities near the main Lebanese government building, in downtown Beirut, Lebanon. Anticipating more protests, authorities installed a concrete wall near the main Lebanese government building, site of the largest protests. On Saturday and Sunday nights, police fired tear gas and water cannons at the protesters, battling them in the streets of Beirut in dramatic clashes, wounding dozens.
Matt Cardy/Getty Images
John Nation, a guide from Bristol Street Art Tours shows a piece of street art as part of the ongoing Upfest 2015 festival being held in Bedminster on Monday. The three-day annual event – which started in 2008 and is said to be the largest free street art and graffiti festival in Europe, now attracts more than 250 artists from 25 countries to paint live on walls and surfaces around Bedminster and Southville areas of the city of Bristol.
A man walks past graffiti painted on a closed shop in the Monastiraki area in central Athens, Greece. Greece faces a last chance to stay in the eurozone on Tuesday when Prime Minister Alexis Tsipras puts proposals to an emergency eurozone summit
An armed member of Houthi Group inspects the scene of a car bomb targeting a group of female mourners loyal to Shia Houthi Group in Sanaa, Yemen on Tuesday
A woman walks past a graffiti by Greek street artist Cacao Rocks in Athens. Greece failed again to clinch a deal with its international creditors on Thursday, setting up a last-ditch effort on Saturday to avert a default next week or start preparing to protect the euro zone from financial market turmoil
A young woman walks past a graffiti reading “Mrs Merkel we still love you – Greece” in central Athens on Friday
A member of the civil defence sleeps on the street in the rebel-held side of Syria’s northern city of Aleppo on Monday. Arabic graffiti in blue reads: “Those looking for life under the rubble of death”
A man walks past abandoned buildings with ‘for sale’ sign in central Athens, on Wednesday
Men sit at a fruit stand near a painting of Che Guevara that has been defaced with graffiti in the Petare neighborhood, home to many Colombian immigrants, on the outskirts of Caracas, Venezuela
A woman passes by graffiti in central Athens on Friday. Germany and Greece face off in yet another eurozone meeting in search of a last minute bailout compromise