Like the title says, what's a strange house that you have or currently resided in? I'll start with mine. I currently live in a house that used to be a church and consists of one floor and a basement. The "top floor" is a huge room (at least 20 feet high and with an estimated 500 square feet) which we use as the living room. The basement is where the bathroom, bedrooms (3), and the kitchen is. The house is heated by a boiler heated baseboard system and is surprisingly warm in the winter. There is an attic (which is pretty big too) but we very rarely go up there due to the huge colony of bats that call it home.