Historic Plaques: 221 Walnut Street Columbia Historic Walking TourShannon Armory221 Walnut StreetCurrent business in the building: Noah W. Wenger Center Click to download the full map (PDF) of Historic Plaques around town! Columbia Walking ToursLaunch KitsJanuary 26, 2021 Facebook0 Twitter LinkedIn0 Reddit Tumblr Pinterest0 0 Likes