Which was the invention that propelled the construction of higher and higher buildings? Concrete? Iron? Not really… It was the elevator: as matter of fact nobody would have accepted to live on the 40th floor without it. From the Tower of Babel to the Kingdom Tower in Saudi Arabia, humanity has always searched to build bigger and higher. What are the scientific advance and technologies that have made it possible to « touch » the sky. Will there be any limits? From the field of physics, to chemistry, maths and all other hard sciences, scientists share the thirst of knowledge and curiosity. Combining dramatic specialist photography with innovative CGI, all set in spectacular locations across the world, this documentary is the pilot of a future series that will highlight the history of human ingenuity.