Question: what historic building in Washington, D.C. is located near the canal who's primary cargo is coal

Context paragraphs:
Chesapeake and Ohio Canal: The Chesapeake and Ohio Canal, abbreviated as the C&O Canal and occasionally called the "Grand Old Ditch," operated from 1831 until 1924 along the Potomac River from Washington, D.C., to Cumberland, Maryland.  The canal's principal cargo was coal from the Allegheny Mountains.

First National Bank (Mount Pleasant, Iowa): First National Bank is a historic building located in Mount Pleasant, Iowa, United States.  The bank was first located on this corner in the 1860s.  Its first building was a small, brick Italianate structure.  This building replaced it in 1923.  It is a two story stone structure designed by Chicago architect Paul V. Hyland in the Neoclassical style.  It is unique in Mount Pleasant in that it is the only stone building facing the square, and it reflects more of a public building instead of a commercial building.  It is similar in style to the Henry County Courthouse, which is diagonally across the square.  The exterior of the primary and secondary facades is composed of ashlar limestone and features paired pilasters on the corners of the primary facade, and a single column in the Corinthian order that flank the main entrance.  It is capped with a simple classical cornice and parapet roof.  The alley side of the building is composed of red brick.  The building was listed on the National Register of Historic Places in 1991.

Wilson Building (Fairfield, Iowa): The Wilson Building, also known as the Wilson Block, is a historic building located in Fairfield, Iowa, United States.  The two-story Italianate commercial building was built in 1876 by James F. Wilson as an investment property.  In 1865 Wilson helped establish and served as president of the First National Bank in Fairfield, and in 1870 he and R. H. Hufford, C. W. Slagle, and George Acheson, organized the Jefferson County Coal Company.  Wilson had been a three-term Republican Congressman representing Iowa's 1st congressional district.  Seven years after this building was constructed he began the first of two terms in the United States Senate.  He had a Senate office in this building from 1883 to 1895.  The historic significance of this building reflects the importance of Wilson's contributions to the economic life of Fairfield, and his political career.  The building was listed on the National Register of Historic Places in 1991.

Building at 813-815 W. Second Street: Building at 813-815 W. Second Street is an historic building located near downtown Davenport, Iowa, United States.  It was listed on the National Register of Historic Places in 1983.  The Classical Revival style building was built by Lorenz Wahle who was an associate in the German Savings Bank and had formerly worked as a grocer.  The date of the building's construction is difficult to discern as the Wahle family owned two buildings on this site between 1870 and 1920.  The structure served as a warehouse until it was renovated in 2003 as a nightclub named Club Fusion.  In 2012 after the building sat empty for a few years it was bought a converted into a convenience store and a bar.

Federal Building (Raleigh, North Carolina): The Federal Building, also known as the Century Post Office, is a historic building located on Fayetteville Street in Raleigh, Wake County, North Carolina.  It was the first Federal Government project in the South following the Civil War.  Construction of the building began in 1874 and was completed in 1878.  The building's Second Empire design was by Alfred B. Mullett whose more famous works included the Old Executive Office Building located near the White House.  The Federal Building was listed on the National Register of Historic Places in 1971 and is a Raleigh Historic Landmark.

Tankersley Tavern: Tankersley Tavern, also known as Old Bridge, is a historic building located near Lexington, Rockbridge County, Virginia.  It was built in three sections with the oldest dated to about 1835.  It is a two-story, nine-bay, single pile, frame building with an exposed basement and a decorative two-level gallery on the front facade.  Also on the property are the contributing washhouse/kitchen, three frame sheds and a stone abutment for a bridge.  It was originally built as a toll house (toll gate) at the county end of the bridge crossing the Maury River from the Valley Turnpike into Lexington.  It later housed a tavern, canal ticket office, general store, post office, and dwelling.

Oak Hill Cemetery Chapel (Washington, D.C.): The Oak Hill Cemetery Chapel, also known as the Renwick Chapel or James Renwick Chapel, is a historic building in the Georgetown neighborhood of Washington, D.C., United States.  Designed by James Renwick, Jr. in 1850, Oak Hill Cemetery Chapel is the architect's only known example of Gothic Revival church architecture in Washington, D.C.  It is located on the highest ridge in Oak Hill Cemetery, near the intersection of 29th and R Streets NW.  The chapel is one of two structures in Oak Hill Cemetery listed on the National Register of Historic Places, the other being the Van Ness Mausoleum.  The chapel, mausoleum, and cemetery are contributing properties to the Georgetown Historic District, a National Historic Landmark.

Best Oil and Refining Company Service Station: The Best Oil and Refining Company Service Station is a historic building located in Cedar Rapids, Iowa, United States.  This was the third service station built by business partners George D. Shaler and George J. Albright.  Albright had previously been a building contractor and had owned a lumberyard, while Shaler was one of the founders of the Best Oil Company.  The two were also in a partnership that acquired a limestone quarry in Stone City, Iowa, and that stone may have been used for the exterior of this building.  This service station was located near a southeast side residential neighborhood, commercial and industrial areas from which it could attract customers.  Built in 1930, the station sold gasoline and provided a wide-range of automobile related maintenance needs until 1960 when it and other local service station operators gave way to the larger chain stores.  While the station originally sold its own Best Oil brand gasoline, it eventually sold national brands such as Conoco.  The building features a large canopy where the pumps were located, a metal cornice, and a service bay.  After its use as a service station came to an end, the building has housed several non-automobile related businesses.  It was listed on the National Register of Historic Places in 2014.

Vigilant Firehouse (Washington, D.C.): The Vigilant Firehouse is a historic building in the Georgetown section of Washington, D.C. located at 1066 Wisconsin Ave., NW, just north of the Chesapeake and Ohio Canal and the Canal Monument.

Mann School No. 2: Mann School No. 2, also known as Sioux Township #2, is a historic building located west of Moorhead, Iowa, United States.  Built in 1884, the building is a simple rectangular frame structure with a gable roof.  Originally three bays long, an addition in the 1920s that added a cloak room and internal stairway to the basement, extended it one more bay.  Located in the Loess Hills, this school differed from one-room schoolhouses on the prairie, in that it was located near the center of a cluster of families rather than at the center of four sections.  Parents of the students who were educated here took responsibility for the upkeep and maintenance of the building and grounds.  The building remained in use as a school until 1945 when the teacher expectantly left.  Enrollment had been low to begin with so the district sent the students to a neighboring rural school and then to Moorhead.  The building continued as a polling place after the school was formally closed in 1945.  It was listed on the National Register of Historic Places in 2001.

Supporting paragraphs: Vigilant Firehouse (Washington, D.C.) Chesapeake and Ohio Canal
Answer: a historic building in the Georgetown section of Washington, D.C. located at 1066 Wisconsin Ave., NW