If you don't look carefully, you might not even see the home that Jonathan Ridley-Joneses and Shanon Ridd built at all! That's because the house is a converted underground water tank. The only thing that can be seen from the surface is a door leading into the hillside. "We've never wanted to live in an ordinary house, " Shanon says. "Living below ground means that our home is quite and very cosy-none of the usual draughts