Seneca County New York (Vacant / Not In Use)  has 4 places on the National Register of Historic Places including 1 place of Statewide significance. Significant places include Willard Asylum for the Chronic Insane, Fourth Ward School, Lodi Methodist Church, Queen's Castle. 
Some of the country's most noteable architects helped create the Seneca County places including R. Jacobson, Warren H. Hayes,  Arthur Nash and  John Bowers. Prominent architectural styles found in Seneca Country are Gothic, Italianate and  Second Empire.