 The Wheel House houses an operational overshot waterwheel.The Homestead Carriage House houses an exhibit on the SS Savannah, the first steamship to cross the Atlantic Ocean, with an engine built at the Speedwell Ironworks, and an exhibit about the history of the ironworks.The Ford Cottage is a 19th-century saltbox cottage, the Moses Estey House is an 18th-century Georgian mansion, and the early 19th century L'Hommedieu-Gwinnup House houses changing exhibits and education space.