Architecture and DesignEmerging TechGlobalNewsSustainability 3XN completes ‘world’s largest upcycled tower’ in Sydney by Maryam Bint-Kazam November 21, 2022 by Maryam Bint-Kazam November 21, 2022 3XN retained 65% of the original structure, including beams, columns, and slabs, and 95% of its original core. 0 FacebookTwitterLinkedinEmail