The Andrew Gilgersleeve Octagon Building, at the corner of Main Road and Love Lane in Mattituck, is in the heart of the community's business district. It was built in 1854 as a combined home and attached store. It has also served as a post office and boarding house. According to its National Register of Historic Places application, it is the least altered octagonal structure surviving on Long Island. (May 21, 2012)
LI sites on the National Register of Historic Places
The National Park Service's National Register of Historic Places is part of a program to coordinate and support public and private efforts to identify, evaluate and protect America's historic and archaeological resources. There are nearly 400 Long Island sites on the registry. Newsday is assembling photos and information of each.
MAP: LI national historic sites
