The Garth Woodside Mansion (also known as the John Garth House, The Woodside, Woodside Place) is an 1871 "Second Empire" Italianate mansion built by Col. John H. Garth. The Garth Mansion is located in Ralls County in Hannibal, Missouri. The Mansion is a wonderful example of this style. John H. Garth played a significant role in the areas lumber, banking and many others in the Hannibal area. Many consider the Garth Mansion one of the finest examples of this style of architecture. The Garth Woodside Mansion is currently a Bed and Breakfast and restaurant.