Examples include Frank Lloyd Wright, who specified copper materials in all of his building projects; Michael Graves, an AIA Gold Medalist who designed over 350 buildings worldwide; Michael Graves &Amp; Associates Renzo Piano, who designed pre-patinated clad copper for the NEMO-Metropolis Museum of Science in Amsterdam; Metal Sight: The source for metal cladding in architecture; http://www.metalsight.com/projects/metropolis/ Malcolm Holzman, whose patinated copper shingles at the WCCO Television Communications Centre made the facility an architectural standout in Minneaoplis; Malcolm Holzman on Design Inspiration, Buildings, April 27, 2009; http://www.buildings.com/tabid/3334/ArticleID/8322/Default.aspx and Marianne Dahlbäck and Göran Månsson, who designed the Vasa Museum, a prominent feature of Stockholm's skyline, with 12000 meters square copper cladding.