Mark Zuckerberg said the 4,500-square-foot underground structure in his Hawaii compound is just a "little shelter." The description was in answer to the question of whether he is building some ...

Mark Zuckerberg has shut down the heavy speculation ... Solely focussing on the 5,000-square-foot underground shelter, Wired revealed last year that it features a living space, a mechanical ...

Mark Zuckerberg has been building a 1,400-acre ... linked by an underground tunnel that leads to a 5,000-square-foot shelter. The development is designed to be self-sustaining and to provide ...

Mark Zuckerberg has opened up about the supposed ... Opening up to Bloomberg, he explained, "That's just like a little shelter. Whatever you want to call it, hurricane shelter whatever." ...