A greenhouse that was left in disuse after a fire. It is located in Welwyn Preserve, Glen Cove NY.

From NY-NJ-CT Botany Online :

"A sprawling, 204-acre estate, Welwyn once belonged to Harold Irving Pratt, son of oil magnate and philanthropist Charles Pratt of the late 1800s. The estate includes a Georgian-style mansion, a former recreation building now used by the Nassau County Holocaust Committee and several smaller service buildings."