If your travel plans to Washington, D.C. Dulles Intl Airport are flexible, we recommend visiting at least one of the following most popular landmarks: Walter E. Washington Convention Center, Georgetown University, or Woodrow Wilson House. Washington, D.C. is the city you should stay in if you want to visit Walter E. Washington Convention Center. Staying in Washington, D.C. is preferred if you want to visit Georgetown University. To visit Woodrow Wilson House, it’s most convenient if you stay in Washington, D.C..