Nantucket Island, located 30 miles at sea off Cape Cod, Massachusetts, holds one of the finest collections of 18th and 19th century architecture in the country. The island has over 2,400 historic resources and is designated a National Historic Landmark. The Nantucket Preservation Trust, a non-profit preservation group with over 700 members, serves as the advocate for Nantuckets historic architecture, gardens and streetscapes. NPT offers a broad range of preservation programs including architectural walking tours, lectures, technical restoration assistance, and in-depth historic research through our house history and house marker programs. In addition, the NPT publishes guides and books on the Islands historic neighborhoods, holds preservation easements, and provides public testimony on historic property applications before the local historic district commission.