7. The King's Road, Chelsea

Chelsea is where well-healed 20 and 30 somethings go to spend their time and money. Prada and Gucci adorn the beautiful people who walk the Kings Road (the road which runs through the middle of Chelsea), and exotic perfumes waft through boutique after boutique. If you want to watch the world go by, purchase some clothes, and eat or drink on the sidewalk. This is the place to be.