Brought to you by the creative minds who envisioned Frank Bistroo, just a few doors down, this is the quintessential cocktail bar - dimmed lights, but not too dark, richly upholstered leather booths, dark wooden accents and works of art from across the globe adorn the walls. Frank Underground brings the silver screen to life, only in technicolour, and if you spend some time here you'll probably forget you're even in modern-day Tallinn. At its heart though are the fantastic cocktails - both classic and newly imagined served up by mixologists who truly know their stuff.