Five hundred and fifty five—that's the number of beers in the collection put together by partner and beer director Greg Engert. The 500 bottles, 50 draft selections and five casks make it the city's preeminent beer emporium. That's where the list started anyway, and it's grown since then. The draft lineup is easy to sort through, broken down into seven main flavor profiles, then further classified into subgroups. For example, the Roast beers are divvied into Dark & Dry as well as Soft & Silky selections. If you don't come in with a personal must-try rare find, though, ask for some menu guidance from the well-seasoned suds experts behind the bar. THE DRINK TO DRINK: The highly coveted cask ales are where it's at. One recent standout was Flying Dog's Raging Bitch, finished in the cask with mango and habanero. KNOW BEFORE YOU GO: Churchkey is above full-service sister restaurant Birch & Barley, which provides a lineup of high-end food not found at your typical beer bar.