The "Landis Valley Museum" is a living history museum located in Lancaster, Pennsylvania. It collects, conserves, exhibits, and interprets Pennsylvania German material, culture, history and heritage from 1740 through 1940. The museum was founded by the Landis brothers--Henry K. Landis and George Landis.Building 16, the Erisman House, was moved to the museum from downtown Lancaster. It is believed to date from c.1800.