Stewards of the iconic buildings and grounds of Capitol Hill since 1793.

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The Cannon House Office Building, completed in 1908, is the oldest congressional office building as well as a significant example of the Beaux Arts style of architecture.
The Cannon House Office Building, completed in 1908, is the oldest...

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View of the U.S. Capitol Building from above at dusk
In order to ensure the safety of visitors and staff and to preserve the...

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AOC members holding the Historic Preservation Award that they received
The Architect of the Capitol strives to perform all work at a high level of...

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Letterpress Print of a leaf
Learn to turn local invasive weeds into useful materials on October 12 at 1:30...

Corinthian Columns

A detailed view of the acanthus leaves on a Corinthian Column on the Capitol Building.
Overview 

Corinthian columns are the most ornate, slender and sleek of the three Greek orders. They are distinguished by a decorative, bell-shaped capital with volutes, two rows of acanthus leaves and an elaborate cornice. In many instances, the column is fluted. Columns in this style can be found inside and outside of the buildings on Capitol Hill, including the U.S. Capitol, the Supreme Court Building, the Russell Senate Office Building, the Cannon House Office Building and the Library of Congress.

The exterior of the Capitol Building contains examples of a modified Corinthian column style, including the East Front center portico and the West Front. On the first floor of the Capitol’s House wing is the dramatic, high ceilinged Hall of Columns, which takes its name from the 28 fluted, white marble columns that line the corridor.

Detailed view of Corn Capitals design on a column at the U.S. Capitol Building.
Corn Capitals in the United States Capitol Building.

The column capitals are a variation on the Corinthian order, incorporating not only classical acanthus leaves but also thistles and native American tobacco plants. Earlier uses of American vegetation in the building's capitals include Benjamin Henry Latrobe's corncob capitals in a first-floor vestibule and his tobacco-leaf capitals in the Small Senate Rotunda.

The Supreme Court Building was designed in the classical Corinthian architectural style, selected to harmonize with the nearby congressional buildings. Its monumental entrance, facing the U.S. Capitol Building, contains a central temple-like pavilion fronted by a monumental portico with 16 Corinthian marble columns that support an elaborate entablature and pediment.

In the Cannon House Office Building and Russell Senate Office Building, their identical rotundas contain 18 Corinthian columns that support an entablature and a coffered dome, and whose glazed oculus floods the rotunda with natural light.