(Panagiotis Tzamaros/AFP/Getty Images)

Protestors clash with riot police (pictured above) during a demonstration near Syntagma square in the center of Athens. Thousands of demonstrators besieged the Greek parliament on June 15 in a large anti-austerity protest marred by violence, leaving at least a dozen injured ahead of a critical reform vote in parliament.

TECH: Google Les Paul doodle cost the world $268 million

In Google’s ever-growing attempt to make the world waste hours and hours of time on their usually simple home page, the Les Paul Google doodle managed to keep Internet fans entertained for a collective 10.7 million hours. More than 740 million visitors attempted to strum out a chord or two, and Extreme Tech, a Web tracking company, has put together an estimate of how much that cost in productivity time. The answer? A cool $268 million. That number beats the previous time-suck Pac-Man doodle, which only saw the world lose $120 million in productivity.

WORLD: Al-Zawahiri takes command of al-Qaeda

It was the promotion everyone expected: Osama bin Laden’s longtime second-in-command Ayman al-Zawahiri has assumed control of al-Qaeda. The Egyptian-born surgeon is said to have the skill and expertise to run a global terrorist organization, though he lacks the charisma of his previous boss. Here’s a look at who’s running the terror network.

MUSIC: The city as an instrument

It took director André Chocron three months to capture enough time-lapse footage of a city to put together this music video for the band Cold Mailman. He turns the lighted windows of the cityscape into the musical notes: