Guinness Open Gate Brewery

This guide to the Guinness Open Gate Brewery in Dublin traces Arthur Guinness's improbable 1759 lease at St James's Gate, signed for nine thousand years, and the secretive research lab the company opened in 1904 to test recipes no outsider was allowed to taste. You'll hear how that century of closed-door experimentation finally ended in 2015. Try whatever's pouring right now: it's one of hundreds of recipes, and only a handful ever reach these taps.