It's important to keep in mind that sustainable, energy-efficient buildings do exist outside of the LEED rubric. Accordingly, 700 Broadway calls itself New York City's "original" green building; the 10-story, 100,000-square-foot tower dates from 1891 and is the former home of the National Audubon Society, which purchased the building in 1989 while it was abandoned during a much seedier era in the Village. The organization sold the building in 2006 to the Lincoln Property Company for $53 million and (as we wrote about recently) moved earlier this year to the seventh floor of 225 Varick Street. The Audubon Society has outfitted that space with a number of green design features in pursuit of a LEED for Commercial Interiors Platinum rating from USGBC.