Green Double House

Robert Elliott's Wholesale Grocery is a historic commercial building located at Hannibal, Marion County, Missouri. It was built about 1886, and is a two-story brick structure. It features semicircular arches with fanlight tops on the first floor, upper windows with segmental arches, and an applied cornice, possibly metal.: 58–59  It was added to the National Register of Historic Places in 1986.

Broadway District is a national historic district located at Hannibal, Marion County, Missouri. The district encompasses 28 contributing buildings in the central business district of Hannibal. It developed between about 1866 and 1934, and includes representative examples of Italianate, Classical Revival, and Art Deco architecture. Notable buildings include the Lakenan Building (c. 1866), Kresge Building (1931), Second Farmers and Merchants Bank (c. 1910), Sproul-Cash Store (1901), Hannibal Trust Company (1909-1910), Hickman Block (c. 1865), and Robinson Brothers (c. 1894).: 18–27  It was listed on the National Register of Historic Places in 1986.

Hannibal Old Police Station and Jail, also known a City Hall, is a historic police station and jail located at Hannibal, Marion County, Missouri. It was built in 1878–1879, and is a two-story, eclectic late Victorian style brick building on a granite foundation. It features two octagonal towers of different heights and a complex roof defined by a heavy bracketed cornice.: 2  It was added to the National Register of Historic Places in 1979. It is located in the Central Park Historic District.

Davidson Building was a historic commercial building located at Hannibal, Marion County, Missouri. It was built between 1903 and 1905, and was a two-story Romanesque Revival style building. It had a three-bay rock-faced ashlar facade and party walls. It featured arched windows with radiating voussoirs.: 44–45  It has been demolished. It was added to the National Register of Historic Places in 1986.

Standard Printing Company, also known as the Hayward Grocery Company, is a historic commercial building located at Hannibal, Marion County, Missouri. It was built in 1879, and is a three-story, nine bay by ten bay, Italianate style brick structure. It features segmental arched windows, a lavish bracketed and modillioned cornice, and a storefront with intact cornice and iron pilasters.: 38–39  It was added to the National Register of Historic Places in 1986.

The buildings at 207–209 South Main St. are two historic commercial buildings located at Hannibal, Marion County, Missouri. They were built about 1860 and are two two-bay, two-story brick storefront buildings. They have high transom or fascia areas and segmental arched windows on the second story.: 52–53  It was added to the National Register of Historic Places in 1986.

Mark Twain Hotel is a historic hotel building located at Hannibal, Marion County, Missouri. It was designed by Barnett, Haynes & Barnett and built in 1905. It is a four-story, Renaissance Revival style steel-frame structure with a granite foundation and beige pressed-brick exterior. The annex was built in 1918. It features semicircular arches over the main door and adjacent windows.: 50–51  It was then added to the National Register of Historic Places in 1986.

Holmes–Dakin Building is a historic commercial building located at Hannibal, Marion County, Missouri. It was built in 1894, and is a two-story brick structure with a coursed rubble foundation and a flat roof. It features a corbelled brick frieze with matching corbelled parapet, capped by a stone molding. It originally housed a cigar factory.: 46–47  It was added to the National Register of Historic Places in 1986.

Benjamin Horr House, also known as the Standard Printing Company, is a historic home located at Hannibal, Marion County, Missouri. It was built about 1855, and is a two-story, vernacular Greek Revival style brick structure. It has a front gable roof with cornice. It is the earliest surviving building to have been used for education in Hannibal, having once housed a private school run by the family of one of Mark Twain's former schoolteachers.: 40–41  It was added to the National Register of Historic Places in 1986.

Hock Building, also known as Standard Printing Company, Warehouse No. 8, is a historic commercial building located at Hannibal in Marion County, Missouri. It was built in 1872, and is a three-story brick structure, three bays wide and eight deep. It features arched windows with thick cast-iron moldings above and iron pilasters at the first floor storefront.: 42–43  It was added to the National Register of Historic Places in 1986.

Digel Block was a historic commercial building located at Hannibal, Marion County, Missouri. It was built in 1901, and was a two-story red-brick building. It featured an ornamental parapet screening a flat roof.: 54–55  It has been demolished. It was added to the National Register of Historic Places in 1986.

North Main Street Historic District is a national historic district located at Hannibal, Marion County, Missouri. The district encompasses 27 contributing buildings in the central business district of Hannibal. It developed between about 1852 and 1935, and includes representative examples of Italianate and Beaux Arts architecture. Notable buildings include the Lone Building (1853), Brown's Drug Store (1858), Old Central Hotel (1868-1874), Old Schultz Furniture Store (c 1863), Original Farmers and Merchants Bank (1876), Jameson Hawkins Row (1852), Bernice Gano Tavern (c. 1935), and A. W. Lamb Building (c. 1870-1875).: 28–37  It was listed on the National Register of Historic Places in 1986.