The Underground at The Mob Museum is an immersive basement venue centered on Prohibition-era history, featuring a speakeasy, working distillery with copper still, and private VIP room. The space authentically recreates the clandestine spirit of 1920s illegal drinking establishments while educating visitors about bootleggers and rum runners through period-appropriate decor and operational moonshine production. Extended hours from 11am to midnight daily position it as both a functioning bar and living historical exhibit, offering craft cocktails in a historically informed setting.