What is more American than a baseball game? And now that Washington has their own major-league baseball team, RFK Stadium is an exciting place to be!
Baseball in Washington is affordable. The cheap seats run $7 or $5 at the park on some Wednesdays. The nationals are playing great; indeed, as I write this, they're first in the National League. For $15 or $25, you can get great seats in the infield.
Getting there is easy with the Metro. RFK is at the Stadium/Armory exit off the Orange and Blue Lines. Once you come out of the ground, you just walk past the armory to the stadium.
They let you bring in food to the stadium, but not drinks. (Water may be an exception.) The Foggy Bottom, on the lower level, beer is good if you're a beer drinker, but a variety of other brands on tap (from Bud Light to Guinness) are available around the stadium, as are various sodas and typical stadium food. Note that if you are on a budget, hotdogs can be purchased from the guys out front.
You can get tickets at the box office or from Ticketmaster. Ticketmaster charges a $4 per person fee to produce tickets. Weeknights you can usually get tix at the park that day; otherwise, you may want to get them ahead of time.
I'm going again next week. See you there?