The Underground

The Underground is the Mob Museum's basement speakeasy — and the only bar in Vegas with its own working distillery. The house makes Mob Museum Moonshine on site, the cocktail list runs proper Prohibition-era builds (a Bee's Knees, the bourbon-and-sherry Marlow, a Moonshine Mayhem on the house spirit), and the room is dressed with real Roaring Twenties exhibits, because it technically is one.

The entry ritual is the fun part, and it's real: a password gets you in FREE through the hidden side door off the alley — no museum ticket, no reservation. The password rotates weekly and is posted on the museum speakeasy's own social accounts; look it up before you walk over. The paid route through the museum works too, but the alley door is the move. Hours run daily from 11am to 11pm (midnight on Friday-Saturday), with live jazz and blues on Friday and Saturday from 8pm and Sunday evenings.

Honest notes: daytime overlaps with museum foot traffic, so the secret-bar atmosphere really lands after dark; bar seating is limited; and evenings run 21-plus. As a free stop two blocks off Fremont with house-distilled moonshine and a working password door, nothing downtown matches the concept.