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A man walks past a graffiti of Sausage, a stray dog, painted by street artists Smart, N_Grams and Martinez in Athens October 20, 2014. The ginger mongrel called "Loukanikos" in Greek, who became famous for appearing at anti-austerity protests and barking at riot police at the height of Greece's debt crisis, has died of a heart attack, local officials said on October 9, 2014.

Alkis Konstantinidis/Reuters

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” in Greek, who became famous for 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 woman looks at the Parthenon Marbles, a collection of stone objects, inscriptions and sculptures, also known as the Elgin Marbles, on show at the British Museum in London October 16, 2014. Hollywood actor George Clooney's new wife, human rights lawyer Amal Alamuddin Clooney, made an impassioned plea on for the return of the Parthenon Marbles to Athens, in what Greeks hope may inject new energy into their national campaign.

Dylan Martinez/Reuters

A woman looks at the Parthenon Marbles, a collection of stone objects, inscriptions and sculptures, also known as the Elgin Marbles, on show at the British Museum in London. Hollywood actor George Clooney’s new wife, human rights lawyer Amal Alamuddin Clooney, made an impassioned plea on for the return of the Parthenon Marbles to Athens

Amal Clooney...Lawyer Amal Clooney, second left, arrives for a meeting with Greek Prime Minister Antonis Samaras in Athens, Wednesday, Oct. 15, 2014. Lawyers Geoffrey Robertson, Norman Palmer and Amal Clooney arrived Monday to Greece on a four-day visit to meet government officials, including Prime Minister Antonis Samaras, and advise on Greece's quest to have the Parthenon Marbles returned to Athens from the British Museum in London. (AP Photo/Petros Giannakouris)

Petros Giannakouris/AP

Lawyer Amal Clooney arrives for a meeting with Greek prime minister Antonis Samaras in Athens. Lawyers Geoffrey Robertson, Norman Palmer and Amal Clooney arrived in Greece on Monday for a four-day visit to meet government officials and advise on Greece’s quest to have the Parthenon Marbles returned to from the British Museum. Read more

A young Roma man stands next to a burning barricade during a protest in Athens on Tuesday, Sept. 30, 2014.  The Greek Roma community, protesting authorities' plans to demolish their illegal settlement and move them to a remote spot in the countryside, blocked a main northern Athens avenue for hours Tuesday, using rubbish bins that they then set on fire. Eventually, a compromise was reached whereby a few uninhabited shacks will be knocked down, and the rest will stay in place pending a final agreement on relocating the Roma.

Thanassis Stavrakis/AP

A young Roma man stands next to a burning barricade during a Greek Roma community protest in Athens that blocked a main northern avenue in the city on Tuesday. The Roma are protesting authority plans to demolish their illegal settlement and move them to a remote spot in the countryside

A Greek Army Apache helicopter takes part in an air show at Athens Paleo Faliro coastal suburb  on September 25 , 2014. The show was a pre-event for  Athens annual Flying Week  at the weekend at an airfield north of Athens.

Louisa Gouliamaki/AFP

A Greek Army Apache helicopter takes part in an air show at Athens Paleo Faliro coastal suburb on Thursday

Lukas Michul, a member of the 'dream wal...Lukas Michul, a member of the 'dream walker' group jumps from atop the rugged rocks overlooking the azure waters of Navagio beach, one of the Greece's most renowned leisure spots on the popular tourist island of Zakynthos on June 23, 2014.  This is rope jumping -- part diving, part rock climbing, with a touch of engineering. The aim of the project is to dream jump in 80 places with most ravishing nature and architecture all over the world .They plan to stage their next leaps at a cave complex in Croatia, a French viaduct, skyscrapers in Las Vegas and Johannesburg, and the Grand Canyon. AFP PHOTO /  LOUISA GOULIAMAKILOUISA GOULIAMAKI/AFP/Getty Images

Louisa Gouliamaki/AFP/Getty

Lukas Michul, a member of the ‘dream walker’ group jumps from atop the rugged rocks overlooking the azure waters of Navagio beach, one of the Greece’s most renowned leisure spots on the popular tourist island of Zakynthos. This is rope jumping, part diving, part rock climbing, with a touch of engineering. The aim of the project is to dream jump in 80 places with most ravishing nature and architecture all over the world.

The world's largest solar-powered boat, "MS Turanor PlanetSolar" sails through the Corinth Canal near the town of Corinth on July 28, 2014.  The boat arrived to Greece as part of a joint archaeological project focused on underwater exploration off one of Europe's oldest human occupation sites, the Franchthi cave in the Argolid, southeast Peloponnese. The project is taking place in one of Greece's richest archaelogical areas, the Argolid, known for its major palatial complexes in the Bronze Age that include Mycenae and Tiryns and later, classical-era city-states and sites like Argos and the ancient-theatre site of Epidaurus.

Valerie Gache/AFP

The world’s largest solar-powered boat, “MS Turanor PlanetSolar” sails through the Corinth Canal near the town of Corinth on Monday. The boat arrived to Greece as part of a joint archaeological project focused on underwater exploration off one of Europe’s oldest human occupation sites, the Franchthi cave in the Argolid, southeast Peloponnese

Far-right Golden Dawn party supporters demonstrate in front of the Parliament before a vote that will decide whether the deputies of the party will be stripped of their immunity from prosecution, in Athens, Greece, 04 June 2014. The members of Parliament (MP) of the Golden Dawn party are being charged for their alleged participation and leading of a criminal organization

Yannis Kolesidis/EPA

Far-right Golden Dawn party supporters demonstrate in front of the parliament in Athens before a vote that will decide whether the deputies of the party will be stripped of their immunity from prosecution over alleged criminal activities

Cleaning ladies from the public sector react as they scuffle with police officers at the entrance of a building housing the Finance Ministry, during a protest against the layoffs and transitions due to a troika-led civil service revamp, in Athens June 3, 2014.

Alkis Konstantinidis/Reuters

Cleaning ladies employed by the public sector demonstrate at the entrance to the Finance Ministry in Athens, Greece, during a protest against layoffs

A group of migrants from Somalia that survived from an accident in the Aegean Sea last week, arrive at the port of Piraeus in Athens on May 12, 2014. At least 22 migrants including four children drowned in the Aegean Sea on May 5, 2014 after a yacht and a dinghy carrying them towards Greek shores capsized. Eighteen people were found dead on board the 10-metre (33-foot) yacht after it was towed to shore, the coastguard said, adding that another four bodies were recovered at sea.

Aris Messinis/AFP

A group of migrants from Somalia that survived an accident in the Aegean Sea last week, arrive at the port of Piraeus in Athens on Monday