Bar in Vienna serving filled Fladenbrote (similar to pitta bread). The original one is in the Kleeblattgasse in the first district though there are now three in total. Walk up to the top of the Graben, turn right, walk along and you'll see the Kleeblattgasse which is a narrow little alley. Mixed clientèle, reasonable prices, dark with loud music. Fladen are great though.
Kleeblattgasse 1010 Wien, www.kolar-beisl.at