On June 26 at 20:00 GMT watch ‘Secrets of the World’s Super Skyscrapers’ on Channel 5 TV in the United Kingdom. This new programme features commentary by leading architects and engineers, including Rafael Viñoly Architects’ Rafael Viñoly and his recent tower projects: 432 Park Avenue, the world’s tallest residential building; and 20 Fenchurch Street aka ‘Walkie Talkie’ in London.