Of Sand and Stone. On September 8th, Milan-based architect Mario Cucinella will break ground on his One Airport Square project in Accra, Ghana’s capital city. The 230,000 square foot structure of irregular cantilevered floor plates embraced by a web of diagonal concrete supports meant to evoke traditional African patterns. Plans call for a dynamic pedestrian plaza with shops and cafes topped with commercial space. Solar panels are integrated among cantilevered terraces with indigenous fauna to protect the building from the scorching sun.