Hovenden House, Barn and Abolition Hall - Credit: Wikimedia Commons
The Hovenden House, Barn and Abolition Hall is a group of historic buildings which are located in Plymouth Meeting, Whitemarsh Township, Montgomery County, Pennsylvania. In the decades prior to the American Civil War, this property served as an important station on the Underground Railroad. Abolition Hall was built to be a meeting place for abolitionists, and later was the studio of artist Thomas Hovenden. Read more on Wikipedia
Source: en.wikipedia.org