The NCHS Greeley House Museum is open to the public and permanently displays memorabilia of Horace Greeley and his family. NCHS offers educational programs, lectures and workshops for children and adults, including tours of the Greeley House for all 2nd graders in the Chappaqua School District.  The NCHS also presents one to two varying exhibits at the museum every year.  NCHS hosts the annual "Castles of New Castle House Tour" and a community tree lighting and carol sing as well as a Victorian Valentine's Day Tea and holiday crafts for children.