Restaurants
Washington, D.C.
Chaia $
Great lunch spot for vegetarian tacos. Two locations: Georgetown and Chinatown. If you go to the Georgetown location take a stroll down the canal.
Roses' Luxury $$$
A Michelin star restaurant from the founding of the DC Michelin Guide. I would plan to make a reservation far in advance from when you arrive to the DMV.
2Amys $$
One of the best Neapolitan-style pizza spots in DC. They do not take reservations though. It might be a trek, but it's worth it if you plan to check out the National Cathedral.
Maryland
Virginia