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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
A man walks past a graffiti of Sausage, a stray dog, painted by street artists Smart, N_Grams and Martinez in Athens on Monday. The ginger mongrel, called Loukanikos, found fame after appearing at anti-austerity protests and barking at riot police at the height of Greece’s debt crisis, has died of a heart attack
A mother and child pass graffiti in Russia’s far-eastern city of Vladivostok that bears a message against the conflict in the eastern regions of Ukraine. The graffiti reads: “No to war in Ukraine”.
A couple pass in front of a mural of a Muslim woman painted on a wall in an inner city suburb of Sydney on Thursday. Australian military jets are to join in the US-led air war against the Islamic State group in Iraq, conducting refuelling and support missions
A wall defaced with a pro independence slogan in Princes Street Gardens in Edinburgh, Scotland, as the Scottish independence referendum campaign continues
A dog is seen in front of a graffiti featuring dogs in Frankfurt, Germany.
Graffiti depicting German Chancellor Angela Merkel and text reading “Money kills Morals” is sprayed on a fence surrounding the construction site for the new headquarters of the European Central Bank (ECB) in Frankfurt
An artist paints on a wall during a graffiti campaign on social and political conflicts in Sana’a, Yemen. The campaign highlights concerns experienced by Yemenis, including civil wars, terrorism, child recruitment, sectarian wars, poverty, US drone war, corruption, proliferation of weapons and kidnapping.
A woman sketches in front of a closed restaurant in Tokyo, Japan.
A police officer stands guard next to graffiti of President Juan Manuel Santos during a May day protest in Bogotá, Colombia on Monday
A hawker rides his bicycle past graffiti along a street in Manila on Wednesday. Activists will take to the streets of Philippines’ capital to demand higher wages and more job opportunities to commemorate Labour day on May 1
A motorcyclist passes the work ‘Access Control’ by Greek street artist iNO, on central Pireos Street in Athens. Greece has attracted international street artists to its capital, due to the availability of commissioned work and relatively lax anti-graffiti law.