[usconservative]

The National Aquarium is cheap and air-conditioned and near your hotel.

You're either psychic, a genius or both. Youngest son is into marine life big time (large fish tanks, dozens of types of fish, etc..) You've just made him a happy kid. That just went on the list. TYVM.

[kristinn]

Terrific! Glad to help on the National Aquarium.

Ottbmare mentioned the Capitol Fourth concert at the West Front of the Capitol the evening of the Fourth of July.

They usually do a dress rehearsal the night before which will likely be open to the public. That may be an option.