FM Fats points to this article from The Guardian “Top 10 bars and clubs in Atlanta“.  Here’s the Paper Plane blurb…

As with Prohibition, finding Decatur hideaway Paper Plane can require ingenuity. Locals may direct you to Victory Sandwich Bar + Emporium but the actual entrance is an easily overlooked door in a far-from-obvious back hallway. In aviation terms, the nostalgic interior is hardly bigger than a puddle jumper, with a handful of padded-leather booths and a snug bar just like the one in Edward Hopper’s Nighthawks. The retro-inspired cocktails, however, qualify as jet fuel. For a quick liftoff, try the Tart Breaker: rye whiskey, campari, and pecan.
• 340 Church Street, Decatur, the-paper-plane.com. Open Mon-Thu 5pm-midnight, Fri-Sat 5pm-1am