The best thing to do is to park your car at the transit station, and ride a train.
I visited all the Smithsonian Museum. Sharing my experiences with you.
My trip to Washington D.C.
My trip took for 9 days to visit all the Smithsonian Museum. And I highly recommend to visit all. All the museums are free and I walked everywhere.
There are tour busses for the day that do the loops around the area.
Washington, D.C. the U.S. capital, is a compact city on the Potomac River,
bordering the states of Maryland and Virginia.