List of National Historic Landmarks in New York

Columns: Landmark name | Date designated | Location | County | Description
15 | Camp Uncas | October 6 , 2008 ( # 86002937 ) | Raquette Lake 43°44′38″N 74°38′53″W / 43.743889°N 74.648056°W / 43.743889 ; -74.648056 ( Camp Uncas ) | Hamilton | Second of the Adirondack Great Camps ; designed and built by William West Durant | 16 | Canfield Casino and Congress Park | February 27 , 1987 ( # 87000904 ) | Saratoga Springs 43°04′45″N 73°46′58″W / 43.079076°N 73.782855°W / 43.079076 ; -73.782855 ( Canfield Casino and Congress Park ) | Saratoga | Former resort and casino ; now houses the Saratoga Springs History Museum | 17 | Chautauqua Historic District | June 29 , 1989 ( # 73001168 ) | Chautauqua 42°12′35″N 79°28′01″W / 42.209722°N 79.466944°W / 42.209722 ; -79.466944 ( Chautauqua Historic District ) | Chautauqua | Adult education and summer retreat ; focuses on programs related to arts , education , religion and recreation ; well-preserved 19th century architecture | 18 | Christeen ( sloop ) | December 4 , 1991 ( # 91002060 ) | Oyster Bay 40°52′40″N 73°32′23″W / 40.87774°N 73.539702°W / 40.87774 ; -73.539702 ( Christeen ( sloop ) ) | Nassau | Oldest oyster sloop in the U.S | 19 | Frederick E. Church House | June 22 , 1965 ( # 66000509 ) | Hudson 42°13′03″N 73°49′07″W / 42.2175°N 73.818611°W / 42.2175 ; -73.818611 ( Frederick E. Church House ) | Columbia | Calvert Vaux -designed home of Hudson River School painter Frederic Edwin Church ; also known as Olana | 20 | Clermont | November 28 , 1972 ( # 71000535 ) | Clermont 42°05′09″N 73°55′09″W / 42.085922°N 73.919073°W / 42.085922 ; -73.919073 ( Clermont ) | Columbia | Ancestral home of the Livingston family , prominent in colonial and early New York ; known also as Clermont Manor

Example questions:
How many areas are in the place that is a national historic landmark , outside the city of New York , in Ontario County ? | How many acres does the place that is a national landmark outside the city of New York , in Saratoga County cover ? | Which site that is a national historical landmark outside the city of New York , in Hamilton had work started at an earlier date ? | Which of the places that is a national historic landmark outside the city of New York , in Erie County is located at 1 Museum Court ?

Answers:
two | 17-acre | Camp Pine Knot | Buffalo and Erie County Historic Society Building