I really love the James Swenson Civil Engineering Building at the University of Minnesota Duluth, USA. From the materiasl to the integration of sustainable strategies, of which Architecture Daily wrote;
"The new Science and Engineering Building is LEED Gold Certified. A healthy environment for the occupants was achieved by integrating sustainable strategies that are part of the LEED rating system for new construction. These include: increased ventilation, use of low-emitting construction materials, advanced lighting control, advanced thermal comfort control, access to daylight and views for occupied spaces, and the use of an under-floor air distribution system. Native plantings and rain gardens dot the east and west elevations. A green roof with native plant materials helps to reduce storm runoff, cool the building, reduce noise, and reduce glare from surrounding buildings."
- (Archdaily. (2011). UMD Swenson Civil Engineering Building / Ross-Barney Architects. Available: http://www.archdaily.com/189461/umd-swenson-civil-engineering-building-ross-barney-architects/. Last accessed 10/12/2014.)