Yes. Hundreds of spaces in the garage below it, with multiple paid parking garages nearby. Limited street parking is available.
It's also an easy walk from the Metro.
Yes there is a parking garage inside the wharf.
Your best bet is to take the subway and then walk if you can. (I think.)
Another option is parking for cheaper at L'Enfant Plaza nearby.
Yes
There's limited street parking and a garage next door
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