Sing Sing Prison Museum

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  • News
  • About Sing Sing Prison
    • Sing Sing Today
    • Historic Significance
    • Quick Facts
    • Film and Video
    • Working at Sing Sing
    • Sing Sing in Print Media
    • Famous and Infamous
  • The 1825 Cellblock
  • Proposed Museum
    • Why Sing Sing?
    • A New Museum
    • The Powerhouse
    • The Visitor Experience
    • By the Numbers
    • Birdeye Overview
    • About the Project >
      • Board of Trustees
      • Events
      • News
    • Project Studies
  • Community Conversations
  • What People Are Saying
    • 2018 Year End Summary
  • DONATE
  • Contact

The 1825 Cellblock at Sing Sing

The 1825 Cellblock was the largest prison in the world: 476 feet long and originally four cells high and total of 800 cells. Each cell designed for one man often housed two. The cells were seven feet long by three feet wide and six feet seven inches high. Eventually two more stories were added increasing the total cells to 1,000. The plan was considered the best in the world. The 1825 Cellblock was nicknamed "The Big House" and "Castle on the Hudson" 

Historic Images


The 1825 Cellblock Today


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