"Portion of Weir's Greenhouse at southwest corner of 25th Street and Fifth Avenue, 1960."

Weir's Greenhouse is the only 19th century commercial greenhouse structure to survive in New York City. It was in 1895 by James Weir Jr., whose family was in the local horticultural business. The original greenhouse on this site was built in 1880 by a prominent architect named Mercein Thomas, who is better known for his Romanesque Revival Brooklyn homes. The current structure was an 1895 alteration of the original building, though it is believed that very little of the original structure was retained during the construction.

This wood, glass, and iron structure served visitors to Green-Wood Cemetery for nearly a century, and likely survived, while other nearby greenhouses disappeared, because of its location directly across the street from the cemetery's main entrance. In February 2012 the cemetery acquired the greenhouse and with a grant from New York State’s Regional Economic Development Council, they plan to restore the structure and use it as a visitors center and exhibition gallery.