As an acid-free substance, hardboard is a viable medium for family portraits. Hardboard, a heavy type of fiberboard made from mechanical pulp, graces homes in the form of siding and more recently as artists' canvas. Hardboard comes in various finishes, thicknesses and types to mimic coarse chipboard, plywood or real wood.
Boeing Everett Factory. Largest usable space by volume. This building claims to be the outright biggest of the worldâs biggest buildings due to its mammoth volume. Some of the greatest planes ever built are assembled here, such as the wide-body Boeing 747, 767s, 777s, and the new 787 Dreamliner.
9. & 10. The Petronas Towers 1 and 2 held the record as the tallest buildings in the world from 1998 to 2004 and remain the tallest twin towers in the world. These two buildings, completed on January 1, 1996, are the landmarks of Kuala Lumpur in Malaysia.