A newly opened building in the diamond hub of Surat in Gujarat has surpassed the Pentagon as the world's largest office building, according to a report in CNN. Surat Diamond Bourse, billed as a "one-stop destination" for over 65,000 diamond professionals, including cutters, polishers and traders, will welcome its first occupants in November, the report said. It features a succession of nine rectangular structures spilling out from - and interconnected via - a central "spine", and the sprawling 15-storey complex has been built across more than 35 acres.
