"London is unique in being partly controlled by views," says Richard Rogers

In the fourth exclusive interview that we filmed with Richard Rogers in 2013, the late architect explains the shape of the Leadenhall building and how it was designed to complement London's diverse skyline.
The interview forms part of a series filmed by Dezeen in 2013, which marked a retrospective of the architect's work at the Royal Academy of Arts in London.
Rogers, who passed away on 18 December aged 88, was one of the world's most acclaimed architects and a key pioneer of the high-tech