Right on Main Street in Newmarket, the Mathes Block is one of the best-preserved examples of a brick commercial building in town. The structure was seemingly built for Benjamin W. Mathes, who operated a grocery and dry goods store out of the storefronts. Above, he likely had offices or a dwelling for workers. The building stands out for the contrast of granite at the storefront with the brick elsewhere. The building is now home to The Riverworks, an aptly named restaurant/pub with great food.