I've thought about this a lot. First of all, it would be deep in the woods, you'd have to walk about a third of a mile down a little dirt trail to reach it from the road.

When you reach it, all you'll see is a little dilapidated tin-shack. It has no windows, and it's fenced off and padlocked, the chain is of course rusty.

Inside the shack will be a wheelbarrow, some landscaping tools, and a leather armchair. It'll be lit by a dim, uncovered light bulb. This is all just a front though. Lifting up the seat cushion of the armchair reveals a platform that you can stand on and which lowers you underground to the true house.

All of the rooms are connected by secret passage ways. The foyer will just be a comfortable, simple room. It will have the elevator back up and a closet for jackets and shoes. The closet will have a false back leading to the living room. It will be your standard rich person living room, big TV, good entertainment system, the works, the walls will have some sort of divided paneling on it, and pushing on the right one will make it spin, allowing access to the kitchen.

The kitchen is the main hub, lots of large walk in pantries. One of them connects to three rooms by spinning and you choose which one by putting a special canned food thing with a microchip in it in the proper place. Walk in, close door, put can of baked beans in the proper place, wait, open the door and walk out into a hallway leading to either my bedroom, a library, or guest rooms.

All the bedrooms have slides connecting to the pool area below, and the pool area has another lift bringing you back to the living room through one of the wall panels again, but that one can only be opened from the poolside. So to get to the pool, you HAVE to go down one of the slides.