Image Credit

Description:

Environmental Engineering Science Project Detailed view of a walkway and plants in the Chicago City Hall rooftop garden Spring 2003

Source:

Chicago Department of Environment website

License:

Government Public Domain

Source URL:

http://egov.cityofchicago.org/city/webportal/portalContentItemAction.do?BV_SessionID=@@@@1833650324.1208748088@@@@&BV_EngineID=cccdadedlihdkmkcefecelldffhdffn.0&totalItems=39&nextOffset=18&contentOID=536908660&contenTypeName=COC_EDITORIAL&firstTime=false&