18. Galveston, Texas
In the early 20th century, Galveston earned a reputation as the “Sin City of the Gulf.” Gambling, bootlegging, and vice flourished under the control of the notorious Maceo crime syndicate. Nightclubs, casinos, and speakeasies drew crowds—and criminals—from across the region. As Texas Monthly reveals, Galveston’s underworld rivaled that of bigger cities, with organized crime deeply woven into its identity.
