DC proper is pretty weak for location pinball. Check out the FSPA's site and the database of location pinball by county for the DC/VA/MD area: http://www.fspazone.org/ladb/ladb.pl The games that are at the 3 FSPA league locations are below.
Mighty Mike's Current Lineup (Sterling, VA)
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Funhouse
Jack*Bot
NBA Fastbreak
Party Zone
Road Show
Royal Flush
Volleyball House Current Lineup (Elkridge, MD)
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Airbourne
Baywatch
Gottlieb's Cleopatra
Corvette
Gottlieb's Fast Draw
High Speed
Medieval Madness
Seawitch
Stargate
Star Trek: The Next Generation
Williams Grand Prix
Town Hall Current Lineup (College Park, MD)
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Attack from Mars
Funhouse
Doctor Who
The Shadow
Twilight Zone
Whirlwind
World Poker Tour