Skyscrapers: What does the future hold?
3 December 2012 Last updated at 17:05 GMT
This has been a landmark year for the world's skyscrapers. Despite the global financial crisis, 2012 saw the unveiling of Europe's new tallest building, the Shard in London - and by the end of the year, nearly three-quarters of the world's 100 tallest buildings will be located in Asia and the Middle East, a dramatic shift from west to east.
Architect and academic Antony Wood of the Council on Tall Buildings and Urban Habitat spoke to the BBC's Tim Wilcox about the future of skyscraper design.