Diggers remove a million tonnes of stone a year from the place where Roman emperors, Michelangelo and Mussolini all went for their marble.
Why has the internet been arguing about the former Barcelona centre-half? Find out with BBC Trending's round-up.
The new Jason Bourne film might feature a plot involving a global social network, but don't expect to find its director Paul Greengrass tweeting about it any time soon.
The Sun-powered aircraft Solar Impulse sets out from Egypt's capital, Cairo, on the last leg of its quest to circle the globe.