After bringing visitors through the hidden back entrance of this 1768 home, guides retrace the experience of slaves who found a haven here when the Johnson House was a key station on the Underground Railroad. They weave the story of the Johnson family, Quakers who worked to abolish slavery, with that of Harriet Tubman, who was sheltered here with runaway slaves and later guided them to freedom. Visitors see hiding places, including the third-floor attic hatch that runaways would use to hide on the roof when the sheriff came by, learn Underground Railroad code words, and view slavery artifacts, such as ankle shackles and collars. The home has contained the gamut of American history; in 1777 the house was in the line of fire during the Battle of Germantown; the shutters still show the impact of the musket rounds. In the early 1900s it was saved from demolition when it became a women's club. The house itself does not amaze, but hearing the stories of the home when you are standing within it is interesting. It's best to call ahead for tours.