Interesting! I just learned from Gizmodo┬áthat┬áthere’s a giant floating prison in NYC called the Vernon C. Bain Correctional Center. It’s located at 1 Halleck Street in the Bronx, directly across the water from Riker’s Island.

Vernon C. Bain Correctional Center is a 625-foot long by 125-foot wide flatbed barge with 100 cells.