 Interior walls are studded every two inches with iron spikes to prevent prisoners from being able to escape.The Columbia Women's Club and the Columbia Bicentennial Committee have completely renovated the building for use as a museum to preserve some of the articles of historical interest to Columbia citizens.The Purcell-Killingsworth House, also known as "Traveler's Rest" was completed in 1890 by William Henry Purcell (1845–1910), a prominent Columbia business man and politician.