The Mob Museum and jokes about organized crime roots

The National Museum of Organized Crime and Law Enforcement (commonly called The Mob Museum) is housed in the former federal courthouse in downtown Las Vegas and documents the city's historical connections to organized crime and law enforcement. The museum’s exhibits include artifacts, trial records, and oral histories related to mob activity and federal prosecutions in Las Vegas. Residents and comedians often quip that Las Vegas was "built by the mob," a theme the museum explores in factual detail. The museum is a major downtown cultural attraction.