Auraria Library in downtown Denver Colorado was designed by Helmut Jahn in the mid to late 70’s. Auraria library is run by the University of Colorado Denver but is utilized by the  Metropolitan State University of Denver as well as the Community College of Denver. Jahn received an Excellence-In-Design Award from the Chicago Chapter of the American Institute of Architects in 1978. Then another award for the building’s ability to withstand the test of time in 2009 from the Denver chapter of the American Institute of Architects. The downtown campus features two-foot mechanical sunshades, set at 40 degree angles that utilize natural light in a sustainable way. They shield the western and southern sides of the building, shielding the building from harsh sunlight in the summer and lets light in to heat the building in the winter. Natural light provides about 40% of the light the building needs during the day. This was a very forward-thinking design and use of light is a standard for sustainable building practices.