BillyPenn.com is a website focused on giving Philadelphia residents news and tips, including suggesting travel destinations.
Recently, the site recommended Wilmington as a great place for a day trip - here's an excerpt:
Hang out in the Market Street area for history, shopping and restaurants centered in this downtown area. Rodney Square is right in the center of this business district and is a good place to start walking through the city.
You can read the full piece by clicking here.
Obviously, I agree with the writer's suggestions.