This'll give you an idea of where this stuff is, from the Woodley Park-Zoo/Adams Morgan metro stop, to 18th st where the bars are at:

http://maps.google.com/maps?saddr=co...ngton+dc&hl=en

(the driving directions are wierd because the address for the station is a bus stop on 24th st, you can just walk down connecticut ave til it hits calvert and then calvert over to 18th)