Prison (jeracraft 7)
What does the Instant structures Mod (ISM) by MaggiCraft?
official website: instant-structures-mod.com/
With the Instant Structures Mod (short: ISM) you can choose one of 365+ structures and place them with just a few click in your Minecraft world. The structures sizes range between a few 100 blocks and 3,000,000 blocks. Placing larger structures accordingly takes longer. Structures are divided in themes and are easily accessible through a wiki. The structures of the Instant Structures Mod (ISM) are quite detailed, published structures are listed in the sub-side Structures.
Furthermore you can scan (save) your own structures and place them as many times as you like. You can share your saved structures with your friends or even with the entire Minecraft community ISM is available for Minecraft Versions 1.7.10 and 1.8. To install ISM you need Minecraft Forge.
official website: instant-structures-mod.com/