U St has great music and nightlife
H st has hipster bars and music
Embassy open house events (global)
Embassies in EU open house events
Smithsonian Folklife Festival in autumn
National X-mas, and nearby Menora
Great ramen and Sushi in silver spring
Great ramen in DC - note that they don't have reservations and usually a line
Colombia Heights and Chinatown
Northside, a great Arlington hipster coffeeshop
Teaism is great for relaxing or meeting by nat'l mall
Hang out with Zed in silver spring
Almost all museums are free unless privately owned
Eat lunch and relax in a nice interior space
View sculpture garden and modern art museum
View incredible asian art, a secret gem by the castle
Check out planes and spacecraft in a hanger in far virginia
(paid) Spy museum
[closed] (paid) Newseum