THE future of skyscrapers is not set in stone, concrete or steel - instead, they might be made out of coral-like materials or inspired by silkworms. An annual competition run by eVolo Magazine has attracted some of the wacky and wildest designs for future skyscrapers. 7 In first place was the Chinese skyscraper pitch called Urban Intercropping, put forward by Penghao Zhao et al (and others) Credit: Penghao Zhao et al 7 In second place was the Streamline Concerto, another Chinese design from Jianwei Zhu et al Credit: Jianwei Zhu et al 7 Some 1000 meters beneath the ocean surface,...