Marriott International headquarters has been awarded the gold medal for green buildings. After a three-year effort to become more sustainable and environmentally-friendly, the 30-year-old building is celebrating its LEED® (Leadership in Energy and Environmental Design) Existing Building Gold status – an investment that saves the company $700,000 annually and up to $1.3 million in expected tax credits over three years– in an event today with the U.S. Green Building Council (USGBC).  To view Multimedia News Release, go to