Our final day started off chilly and rainy, which resulted in a change of itinerary from the National Zoo to the Udvar-Hazy Center in Chantilly, Virginia (beside Dulles International Airport). This is a companion facility to the Smithsonian Air and Space Museum on the National Mall.
As usual, we had a nice breakfast in the Tennessee Dining Room at the 4-H Center and then boarded the busses for Virginia.