Emanating from State Circle is the commercial and residential Maryland Avenue, the development of which was made possible in the nineteenth century by the division of early estates. The former brick market and meeting hall (c. 1820–1840; 79 Maryland) is perhaps the earliest, erected at the intersection with the circle, within proximity to the State House. It is distinguished by its gable-front facade framed by pilasters. A number of frame buildings with Italianate detailing were built in the 1870s and 1880s, some upgraded with new facades during the early twentieth century. An example is the former meat market and grocery store (c. 1870; 67–69 Maryland) that received a decorative cast-iron front with Adamesque motifs c. 1900. Built c. 1880 is 78 Maryland, upgraded c. 1945 with a blue glazed-tile facade with sunburst pattern and projecting marquee as an appliance store. The most imposing commercial structure is the former Masonic Temple and Opera House.