Staten Island Landmark - The Conference House (also known as "Bentley Manor") was built before 1680 and is located near the southernmost tip of New York State on Staten Island, which became known as "Billop's Point" in the 18th century. The Staten Island Peace Conference was held here on September 11, 1776, which unsuccessfully attempted to end the American Revolutionary War. The house, a National and New York City Landmark, is the only pre-Revolutionary manor house still surviving in New York City.