Step 1: Tour the prison lockdown slideshows on this page.

Step 2: When you've reached the end of your favorite gallery, click "I'm Ready to Vote."

Step 3: Choose your favorite by clicking "Vote Now."

Alcatraz 13 Photos

Old Montana Prison 12 Photos

Central Unit Prison 15 Photos

Old Licking County Jail 11 Photos

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Hospital Lockdowns

Have a favorite hospital lockdown? Tour the slideshows below and vote for your favorite.