The city of Lancaster hosts several museums that preserve its important contributions to society. The Demuth Museum is in the former home of a well-known Lancaster painter named Charles Demuth. Additional art museums include the Lancaster Museum of Art and the Philips Museum of Art on the campus of Franklin & Marshall College. Art students at the state-of-the-art Pennsylvania College of Art and Design present their works at the academy's gallery that is open to the public. Another newly constructed museum, completed in 2007, is the Lancaster County Quilts and Textile Museum that celebrates the hand-sewn quilts and other textile items produced by the region's Amish and Mennonite communities. Lancaster also possesses two other museums showing Pennsylvania Dutch heritage with the Lancaster Mennonite Historical Society Museum and the Heritage Center Museum. Children can have a hands-on experience with educational learning at the Hands-on House, also known as Children's Museum of Lancaster. Nature and geology-minded visitors can view the more earthly exhibits of the Louise Arnold Tanger Arboretum and the North Museum of Natural History and Science. Upon completion, the Lancaster County Convention Center will incorporate the Stevens and Smith Historic Site, a museum that will include the preserved home of Thaddeus Stevens and his confidante Lydia Hamilton Smith.