The Milk Room is an ultra-exclusive eight-seat cocktail bar housed within the Chicago Athletic Association hotel, specializing in rare vintage spirits and omakase-style cocktails tailored by expert bartenders. Named after a Prohibition-era practice where alcohol was served in glasses of milk to evade detection, this intimate speakeasy occupies a hallway space between the Drawing Room and Game Room. Guests must purchase tickets (starting at $50, credited toward drinks) for a two-hour seating experience. Note: The Milk Room closed permanently in 2026.