1. Building 92 at Brooklyn Waterfront Research Center (free); Wed – Sun. 12;00 – 6:00 FREE self-guided tours of building’s sustainable features and businesses

http://brooklynwaterfront.org/

2. Brooklyn Grange Farm: Open House Saturdays 11:00 – 4:00 (free)

http://brooklyngrangefarm.com/flagship-farm/

3. SIMS Recycling Facility in Sunset Park Brooklyn

http://www.nycedc.com/project/sims-municipal-recycling-facility