I build this prison 2 years ago in survival, I was inspired by the westbay prison built by nic1010 (http://www.planetminecraft.com/project/westbay-prison/)

I just fall in love with this prison so i built mine for an event prison break. There is a redstone système who open all the doors and so much hide rooms. 

All the insides are done, so you can use it as you want to.

If you love it, thanks too give diamonds :)