Editor's note: For the past year, Atlanta Business Chronicle has worked with AIA to showcase the city’s best architecture — the sometimes overlooked representations of its history and culture. The effort has included examples as varied as downtown’s Center for Civil and Human Rights, Midtown office towers such as 1180 Peachtree, and even The Goat Farm, a converted industrial complex on Atlanta’s west side that today hosts underground art, theater and dance events. Piedmont Park’s Isamu…