Founded in 1733, Savannah, Georgia, originally had 24 squares. It's a remarkable feat of preservation that 22 are still in existence. Surrounded by stately homes and beautiful gardens, they form the heart of a two-and-a-half-square-mile historic district with more than 2,000 historic or architecturally significant buildings. The city includes the Juliette Gordon Low Birthplace, founder of Girl Scouts; art dealer Jim Williams's 1860s Mercer House made famous in the book "Midnight in the Garden of Good and Evil;" and historic cemetaries noted for their sculpture and flora and fauna...