English: While one might argue that the towers themselves are copyrighted by the architect, “the design of a useful article … shall be considered a pictorial, graphic, or sculptural work only if, and only to the extent that, such design incorporates such pictorial, graphic or sculptural features that can be identified separately from, and are capable of existing independently from, the utilitarian aspects of the article.” 17 U.S.C. § 101 (definition of “pictorial, graphic or sculptural work”). A “useful article” as defined in the Copyright Act is “an article having an intrinsic utilitarian function that is not merely to portray the appearance of the article or to convey information. An article that is normally a part of a useful article is considered a useful article.” 17 U.S.C. § 101 (2007).