Architecture studio Herzog & de Meuron has transformed the industrial structure of the Titlis Tower in the Swiss Alps into a sculptural tourist destination with dramatic cantilevers and a panoramic viewpoint. Built in the mid-1980s, the former telecommunications tower sits over 3,000 metres above sea level on Mount Titlis, one of Switzerland's most popular mountain destinations, with approximately 1.1 million visitors per year. Find out more on dezeen.com Video is courtesy of Herzog & de Meuron