Lisbon — A street entertainer covered in gold performs for pedestrians. In Portugal, the historical home of some of Europe's biggest gold reserves, the number of jewelry stores, which include cash-for-gold shops, increased 29% in 2011 from a year earlier, a study commissioned by parliament found.

PHOTOGRAPH BY: Mario Proenca / Bloomberg

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Sabugal, Portugal — Men on horseback ride into their village after gathering bulls for the "capeias arraianas," a traditional bullfighting festival held every August in villages on the Portuguese-Spanish border.

PHOTOGRAPH BY: NUNO ANDRE FERREIRA / EPA

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Mars — A new image of the surface of Mars taken by NASA's rover Curiosity.

PHOTOGRAPH BY: HO / AFP / Getty Images

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Oulu, Finland — U.S. champion air guitarist Matt Burns and reigning world champion Aline Westpha of Germany wield their axes at the the 2012 Air Guitar World Championships. A new champion will be crowned Friday.

PHOTOGRAPH BY: VESA RANTA / EPA

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Cordoba, Spain — Members of an Andalusian trade union march from the gardens of Moratalla Palace in a protest against government spending cuts.

PHOTOGRAPH BY: RAFA ALCAIDE / EPA

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Tripoli, Lebanon — A Sunni gunman steps through a hole blown in a wall amid street fighting that has spilled into Lebanon between supporters and opponents of the Syrian regime of President Bashar Assad.

PHOTOGRAPH BY: Hussein Malla / Associated Press

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Ventersdorp, South Africa — Protesters rally outside the courthouse for the sentencing of the killer of white supremacist Eugene TerreBlanche. Chris Mahlangu received a life sentence two years after TerreBlanche was hacked and bludgeoned to death.

PHOTOGRAPH BY: Denis Farrell / Associated Press

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Berlin — The former Tempelhof Airport is turned into an indoor campground at the Campus Party 2012 technology festival. The Campus Party brings together 10,000 technology enthusiasts, hackers, nerds and bloggers for five days to concentrate on finding solutions to five problems proposed through the European Digital Agenda from the European Commission.

PHOTOGRAPH BY: Sean Gallup / Getty Images

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London — Giraffes wait at adjoining windows for the London Zoo's annual weigh-in, in which keepers record the vital statistics of more than 16,000 animals in their care.

PHOTOGRAPH BY: FACUNDO ARRIZABALAGA / EPA

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Gelsenkirchen, Germany — An female baby orangutan looks up to its mother in their enclosure at the zoo in Gelsenkirchen. The birth Friday was unexpected because mother Sexta is 40 years old.

PHOTOGRAPH BY: ROLAND WEIHRAUCH / AFP / Getty Images

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Hoshaya, Israel — American tourist Ella uses an iPad while riding a Wi-Fi-outfitted donkey led by her brother Aaron, in Kfar Kedem, a biblical reenactment park in the village of Hoshaya in the Galilee. Visitors riding donkeys through the Old Testament landscape can now also surf the Web while being transported across the land of the Bible. Organizers are hoping to connect the younger generation to ancient Galilean life while allowing them to like, share, tweet and snap the experience instantly to their friends.

PHOTOGRAPH BY: Ariel Schalit / Associated Press

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Obersaxen, Switzerland — A camper watches a distant lightning bolt strike from dark clouds near the Piz Titschal.

PHOTOGRAPH BY: Arno Balzarini / AFP / Getty Images

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