Designed by the architect James Biber using lines and spaces that recall a typical American granary, the USA Pavilion is a real gem in the green field. The central idea that the entire pavilion concept is based on is “reuse”. It starts straight off with the entrance walkway, created using wood recovered from the promenade at Coney Island following the disastrous passing of Hurricane Sandy. After a welcome message from President Obama and the First Lady, whose images are reproduced on giant LED screens, visitors reach the first floor. Here, by means of videos and interactive games, it's possible to collect information on American innovations in the agricultural field. The building's roof stands out from most of the other pavilions. Conceived as “hi-tech”, it reacts to the sunlight, measuring the amount of light that enters. But this pavilion's real strong point is its green wall, an enormous kitchen garden grown vertically that offers visitors the chance to obtain fresh products. The cultivations are part of swiveling panels that can easily be turned to face the sun. A system that allows collection and recycling of rainwater, and ultimately, focuses on water savings. In short, the [USA Pavilion](http://www.expo2015.org/en/united-states-of-america) is a concrete example of how the future of farming in America will be (or could be) – but not only.