A fun place to get food, drinks and socialize by the Potomac river (only 5 min. walk from hotel).
Go check out the historic DC monuments (the Washington Monument & White House are about a 10 min. walk from hotel).
Nats Park is only a 5 min. drive from the hotel (metro accessible, too) where there are bars, and of course, baseball!
The Spy Museum is across from the hotel, and there are other really interesting and fun museums/exhibits in the area to visit.