Piano apparently sketched his idea on a restaurant napkin while meeting property developer Irvine Sellar in March 2000. According to Piano's architectural firm, RPBW, Sellar keeps the famous napkin in his offices. "He saw the beauty of the river and the railways and the way their energy blended and began to sketch in green felt pen on a napkin what he saw as a giant sail or an iceberg," Sellar recalled in a recent interview. — guardian.co.uk

He has split his time between London and the French capital for the past decade but next year will open a new office in the central London architecture hotspot of Clerkenwell where his neighbours will include Zaha Hadid Architects and Wilkinson Eyre.

Before he goes, Matthews has agreed to complete all his work on the Shard including the viewing gallery, due to open in February, and the restaurants on floors 31, 32 and 33 which are expected to open in the spring. — bdonline.co.uk

HandsumCa$hMoneyYo commented "Norman Foster seems like a really odd fit for this project. He's a wealthy corporatist architect from northern Europe...taking on an abandoned arts academy in a communist state in the tropics, hmm. What could possibly go wrong, yo?"

The tower, designed by Italian architect Renzo Piano, will contain offices, exclusive residences, a luxury hotel, restaurants and a viewing gallery across 72 floors which can be occupied.

There are a further 15 levels which make up the 'spire' - six of which have the potential to be used, with another nine exposed to the elements.

The 1,016ft skyscraper was inaugurated by the prime minister and minister of foreign affairs of Qatar, Hamad Bin Jassim Bin Jabr Al-Thani, and The Duke of York. — dailymail.co.uk

It has transformed the London skyline, but the giant Shard faced hostility all the way. Its Italian architect Renzo Piano meets Steve Rose on the eighth floor – and answers his critics — guardian.co.uk

Because towers take so long to plan and construct, the current crop reflect a vision up to a decade old, reckons Nick Offer of Arup, an engineering firm. Economic conditions and the scale of such projects mean that only the very brave will invest now... In 2010 the coalition scrapped the previous, Labour government’s density targets, which were designed to encourage developers to build more units. Instead it has endorsed “garden cities” — economist.com

Y Design Office has proposed Unit Fusion, a modular, plug-in high-rise residential typology for Hong Kong. However, as of yet, the 75-story tower project is still in its conceptual design phase. Liebchen quipped "Who wants to bet it won't leave the conceptual design phase?"