211 Delaware Street
New Castle, DE 19720
Built in 1732, the New Castle Court House served as Delaware's first court and state capitol. The building is one of the oldest surviving court houses in the United States and a registered National Historic Landmark. Here in 1776, New Castle, Kent, and Sussex Counties declared their independence from Pennsylvania and England creating the Delaware State. The museum features tours and exhibits that illustrate Delaware's unique boundaries, law and government, and the Underground Railroad. The facility is administered by the Delaware Division of Historical and Cultural Affairs.