Some examples being a pool, gym, jacuzzi, movie theater, game room, etc.
Most Helpful Girl
Secret passages, a hidden room, a library, several fireplaces, and spiral staircase. Wrap-around porches (on the upper levels, too, though those don't have to be wrap-around), a slightly wild garden in the backyard, a large indoor bath that's big enough to be a pool, a greenhouse room attached, a guest house, a theater room, and a gaming room (I'd buy all the consoles!). And a secondary library. Because books.0