Inspired by the classic A-frame cabin design, architecture firm Bjarke Ingels Group (BIG) has created their first tiny home with Klein, a prefab-housing startup in New York. Sited in Hudson Valley, the 180-square-foot sleek black cabin is known as A45. Despite its small size, the cabin’s innovative design creates more usable floor space by rotating the classic A-frame structure 45 degrees. This allows the lower part of the house to only touch on two corners, which maximizes the wall height to a soaring 13 feet inside. The resulting crystal-like shape gives A45 an ever-changing appearance.