Exterior, Tile, Stone, House, Gable, Concrete, and Flat “The ‘new box’ on the site is made to be relatively inconspicuous,” say the architects of the boxy, concrete extension. “In the presence of the time-honored beauty of 70-year-old houses and the supreme natural landscape, any fresh elements seem unnecessary and charmless.”   Best Exterior Concrete Tile Photos from In Just 31 Days, These Historic Chinese Ruins Were Transformed Into a Chic B&B