In 2014, the AMP Centre—formerly the tallest building in Sydney, Australia—was slated for demolition. After realizing the environmental consequences and CO2 output this would cause, the owners opened an architectural competition to see how the building could be “upcycled” instead. This year, the renewed building, designed by 3XN, opened as an expanded 49-story skyscraper that has been named World Building of the Year 2022 by …