Beneath LA exist miles of abandoned tunnels, 11 miles (18 km) of which are still accessible. During Prohibition, bootleggers used the space for underground speakeasies and transporting the hooch, but they are officially closed today except when used as film locations or short cuts for employes between city buildings downtown. The best known of the tunnels - between the Los Angeles County Hall of Records and the Kenneth Hahn Hall of Administration - can be reached by an elevator behind the Hall of Records, but anyone not on official business risks trespassing charges.