Yes. Parking will be a zoo. Take Metro. Blue/Orange/Silver to Smithsonian station (Jefferson Drive exit) and you will see it right from there. Walk west toward it. Or, Red Line to Metro Center. (Walk to 14th Street, then down to Constitution)
Yes, Wednesday and Thursday 9:30pm-11:30pm. Traffic is a hell though. My advice is to park at the a spot mile away or so and walk.
I think so from 9.30pm. tomorrow and Sunday a show every hour from 9.30pm
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