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

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This painting by Allyn Cox depicts the cornerstone laying ceremony and is currently on display in the House Wing of the U.S. Capitol Building.
The cornerstone was laid on Wednesday, September 18, 1793, during the first...

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A virtual Map of Capitol Hill from above
View a map of the U.S. Capitol and other buildings and grounds cared for by 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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AOC working cleaning the National Garden
The National Garden is a treasure for everyone.

Doric Columns

Doric Columns
Overview 

Doric columns typically have a simple, rounded capital at the top; a heavy, fluted or smooth column shaft; and no base. Flutes are vertical, parallel channels that run the length of a column. Columns in this style can be found throughout Capitol Hill, including the U.S. Capitol, the Supreme Court Building, the Russell Senate Office Building and the Cannon House Office Building.

The Crypt in the U.S. Capitol Building contains 40 smooth Doric columns of sandstone, which support the arches holding up the floor of the Rotunda. Also in the Capitol, Doric columns can be found in the Old Supreme Court Chamber, designed by Benjamin Latrobe. These columns are modeled on the Temple of Poseidon, which were the shortest and the strongest columns that survive from classical Greece.

The Supreme Court Building’s main corridor is known as the Great Hall, a grand rectangular vestibule that is 30 feet high and lined on both sides with double rows of fluted Doric columns. The columns rise to a coffered ceiling.

The Cannon House Office Building and Russell Senate Office Building, which are nearly identical, contain 34 fluted Doric columns each along their colonnades, facing the United States Capitol. Pilasters continue the Doric order along secondary elevations.