Bahay na bato is a type of building originating during the Philippines' Spanish Colonial period. It is an updated version of the traditional bahay kubo of the Christianized lowlanders, known for its use of masonry in its construction, using stone and brick materials and later synthetic concrete, rather than just full organic materials of the former style. Its design has evolved throughout the ages, but still maintains the bahay kubo's architectural principle, which is adapted to the tropical…