HomeThe News International - World Why Mark Zuckerberg is building $100 million survivalist estate in Hawaii? byHamza Ajaz -December 15, 2023 0 Mark Zuckerberg's Hawaii estate is set to have a 5,000-square-foot underground refuge with purported ladder escape door from The News International - World https://ift.tt/2jRChIP Tags: The News International - World Updates Facebook Twitter