High Quality Content by WIKIPEDIA articles! Adrian Smith + Gordon Gill Architecture (AS+GG), an architecture firm and design firm based in Chicago, is engaged in the design and development of energy-efficient and sustainable architecture. AS+GG designs buildings, cities, masterplans and components of these. It creates designs for an international clientele with projects located throughout the world. The primary uses of these designs are civic, commercial, cultural, hospitality, residential and mixed-use. AS+GG also specializes in supertall skyscrapers, such as the Kingdom Tower, which will overtake the Burj Khalifa as the world`s tallest building.