Speedwell Forge Mansion, also known as Speedwell Forge Homestead, is a historic home located at Elizabeth Township, Lancaster County, Pennsylvania. The ironmaster's mansion was built about 1760, and is a 2½-story, four bay wide and two bay deep, brownstone and fieldstone dwelling in the Georgian style. It was expanded about 1795 with a Georgian/Federal style wing. Also on the property are a contributing stone summer kitchen, stone and frame workshop, stone paymaster's office c. 1795), and stone privy.

Cornwall Iron Furnace is a designated National Historic Landmark that is administered by the Pennsylvania Historical and Museum Commission in Cornwall, Lebanon County, Pennsylvania in the United States. The furnace was a leading Pennsylvania iron producer from 1742 until it was shut down in 1883. The furnaces, support buildings and surrounding community have been preserved as a historical site and museum, providing a glimpse into Lebanon County's industrial past. The site is the only intact charcoal-burning iron blast furnace in its original plantation in the western hemisphere. Established by Peter Grubb in 1742, Cornwall Furnace was operated during the Revolution by his sons Curtis and Peter Jr. who were major arms providers to George Washington. Robert Coleman acquired Cornwall Furnace after the Revolution and became Pennsylvania's first millionaire. Ownership of the furnace and its surroundings was transferred to the Commonwealth of Pennsylvania in 1932.