The 5th Street Gym (also known as World Famous 5th St. Gym) is a boxing gym in Miami Beach, Florida. Now located in an alley on 5th Street, the gym originally operated from 1950 until its closure in 1993. [1] The original owner trained notable fighters including Muhammad Ali. [2] [3] The gym was frequented by celebrities. Today, the gym is frequented by a variety of people, including notable fighters and local residents. [4]