Detroit was once known for dominating the world's automotive production, creating the Motown Sound, and its one-of-a-kind blue-collar work ethic. Currently, however, the Motor City finds itself at a crossroads. Global competition, a global recession, and a declining population have taken a severe toll on what was once America's industrial backbone. Despite these challenges, die-hard Detroiters still have not given up on restoring this once thriving metropolis. / (Source: Investigation Discovery)