A 30-minute documentary from HBO, "Atlantic City: The Original Sin City." It's a companion piece to the series, and originally aired on HBO just prior to the series premiere. It includes interviews with many of the experts on Atlantic City history, including Nelson Johnson (author of Boardwalk Empire), Allen "Boo" Pergament, Heather Halpin Perez, Ralph Hunter, Vicki Gold Levi, Turiya S. A. Raheem, and Bryant Simon. It also includes executive producers Martin Scorsese and Terence Winter, as well as the research advisor for the series, Ed McGinty.

See how it began before it ends. With one episode to go, the cast and creators share their memories of Boardwalk Empire.

See how the amazing 300 foot boardwalk set was created to bring Prohibition-era Atlantic City to life.

Get an insider's tour of some of the famed Prohibition speakeasies in Chicago and New York with cast members from "Boardwalk Empire".

Revisit season one of Boardwalk Empire with Creator/Executive Producer Terence Winter in this 15-minute recap.

Explore the legacy of the 1920s and get an inside look at the styles and trends that made the decade "roar".

Production Designer Bill Groom, and Creator/Executive Producer Terence Winter discuss the new sets of season two.

Get acquainted with the two new major characters in season two: Owen Sleater and Manny Horvitz.