|Sing Sing is a maximum security prison located in Ossining, New York approximately 30 miles north of New York City. Its first appearance is in the Season One episode "One Way to Get Off".|
|Sing Sing is first seen as Holmes and Captain Gregson question Wade Crewes, a serial killer who Gregson arrested in 1999. The superintendent is Joseph Benstrold and the commissioner is Andrew W. Zyckner. ("One Way to Get Off") Holmes and Watson question banker robber Charles Briggs in Sing Sing. ("The Leviathan") Gregson indicates that Duane Proctor served five years at Sing Sing for a weapons assault. ("The Woman")|
- The real Sing Sing.
|11th Precinct • The Brownstone • Diogenes • Hemdale • Morgue • Morland's office • Newgate • Scotland Yard • Sing Sing • Watson's apartment|