Take in great views from a5 Inc.'s 47th floor raw penthouse office at the top of One North LaSalle. a5 is a brand and digital consultancy that brings an emphasis on sustainability to clients’ communications. The Art Deco building, constructed in 1930, is an outstanding example of architects Vitzthum and Burns' work. Before heading up, take in the lavish Deco details surrounding the entrance and lobby.
