If you have only three or four days, Charleston and Savannah are both wonderful introductions to the Southeast, but they feel quite different. Charleston is compact and polished, with colourful historic houses, church steeples and excellent restaurants within easy walking distance. Savannah feels greener and more laid-back, built around leafy squares, oak trees and long, unhurried lunches. Charleston makes an easy day trip to plantations or the beach, whilst Savannah pairs well with Tybee Island. I found this guide to Charleston or Savannah for first-time visitors especially helpful for choosing.