and Constitution Avenue, Northwest, Washington, D.C.[1] On the former site of the John Peter Van Ness Mansion.

The cornerstone was laid on May 11, 1908, by Theodore Roosevelt, Elihu Root, and Andrew Carnegie[2] (who largely financed the building's construction), and the building was dedicated on April 26, 1910.

[3] In 1919, the initial meeting of the International Labour Organization was held in the building.

[4] Between 1921 and 1922, the building was used for committee and subcommittee hearings throughout the Washington Naval Conference while closely guarded by marines with fixed bayonets.

This article about a property in the District of Columbia on the National Register of Historic Places is a stub.