This photograph of the Capitol Columns in the National Arboretum was taken by Martin Radigan. These Corinthian columns sit on a natural knoll in the Ellipse Meadow. Originally part of the East Portico of the Capitol in 1828 , these columns were dwarfed by the Capitol dome when it was completed in 1864. The dome was much larger than the designer intended, and additions were made to adequately support it. These Aquia sandstone columns were moved to the National Arboretum in the 1980s.

This photograph depicts a weathered gatepost and guard house that stood on the grounds of the U.S. Capitol Building from 1827 to 1874. It is made of Aquia sandstone. It currently sits at the intersection of Constitution Avenue and 15th Street in Washington, D.C.

This image taken by John Plumbe shows the United States Capitol in its original form. The external walls were constructed of Aquia sandstone, and its Corinthian columns painted white. The tar-painted canvas dome cover was extremely difficult to maintain. In 1851, President Millard Fillmore ordered a massive enlargement that included the larger dome that required less maintenance.

This daguerreotype was made by John Plumbe circa 1846. It shows the U.S. Patent Office, as it originally stood. The exterior was constructed entirely of Aquia sandstone. In 1877, the upper floors were lost in a fire, but the surviving outer walls and first floor can be seen today in the covered courtyard shared by the Smithsonian Institution's American Art Museum and the National Portrait Gallery. It was designated a historic landmark in 1965.