Edith Green-Wendell Wyatt Federal Building (Portland, Oregon: 2013)

This massive modernization project goes green on many levels, from the initial decision to renovate instead of rebuild at another site, to the iconic addition of aluminum reeds on the west facade, which will both reduce heat gain from sunlight and serve as a three-story trellis for plants.  Photo 10 of 10 in 10 Green Commercial Buildings