Named for its ebullient natural springs, Fountain City, Tennessee, has a rich history and a truly unique identity. Originally established in 1788 by John Adair as Adair's Fort, this area was a depot for the Cumberland Guard, which protected emigrant families traveling to settlements in present-day Nashville. With a population of about 30,000, Fountain City was thought to be the nation's largest unincorporated city by the mid-20th century. Though this distinction was lost when the community was incorporated into Knoxville in 1962, Fountain City has maintained a separate identity and preserved...