What kind of city is Savannah? 　　It is recognized as one of the most beautiful small towns in the United States. Dense vegetation covers almost the entire old city under velvet green shade. There are twenty-two square and neat small squares, European-style giant houses with red brick exterior walls, and Qiuqu. Huge oak trees form Savannah’s unique urban outline. The banyan trees grow together with this city that has a history of nearly three hundred years. The Spanish moss covering the trees and hanging down is green as green and calm. The light here is blurry, and it becomes even gloomier on rainy days. A layer of gray-green mist seems…