I think a huricane bunker would be awesome: a storm is going on in the yard with a HUGE lake that has a shark you walk into for a pvp area to appear. And for the house itself, the entrance is a small metal door in the ground that leads to a huge palace sized room lined with gold and stone and a throne surrounded with treasure at the end of the room and a secret passage behind the throne that leads to a paradise. I hope KI gives me one for the great idea!!!