In the video I show how to create an unseeable hidden entrance to a mountain house or something cool like that. I'm probably not the first one to do this so.. I decided to make a tutorial. If you have any troubles pm me or comment. Note: this does work on bukkit servers because well... I'm using one in the video. Make sure you watch the whole video before you complain or say i doesnt work. Anyways thanks for watching. Leave feedback in the comments. And remember NO POWERED RAILS xD