The Watson-Curtze Mansion in Erie, Pennsylvania was originally built in 1891 as the home of Harrison and Carrie Watson, a wealthy industrialist family. The mansion features ornate architectural details and 24 rooms decorated in different historical styles. After being occupied by two elite families, it was donated to the Erie Public Library in 1941 and is now operated as a museum by the Erie County Historical Society. Visitors can tour the main hall, drawing room, library, and other rooms to experience the opulent lifestyle of the upper class in late 19th century Erie.