Official painted portrait of 11th Architect of the Capitol Stephen T. Ayers.
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Tholos Magazine

Sitting atop the U.S. Capitol Building's cast-iron dome is the tholos, a structure comprised of 12 columns encircling a lantern that is lit to signal when the House of Representatives, the Senate or both chambers are in session. The tholos supports the base of the Statue of Freedom and provides amazing views of Washington, D.C. The entire Capitol campus is visible from the tholos.

Similarly, Architect of the Capitol (AOC) employees are seen in and around every building and across the grounds — day and night — in support of Congress, the Supreme Court and the Library of Congress. The AOC employee magazine, "Tholos," is fittingly named after this prominent and important architectural feature.

Summer 2019

Download the full Summer 2019 issue of "Tholos" magazine, or read the stories on our blog.

In This Issue

  • Project Update: Fire Egress – Library of Congress
  • By the Numbers: Seven Things You May Not Know About Capitol Grounds and Arboretum
  • Feature: U.S. Botanic Garden Orchids Gain 600 New Siblings
  • Hidden History: Brumidi Artifacts
  • Season Highlight: Out and About on Walkabouts

Tholos Archives

The AOC Communications and Congressional Relations office published the first edition of the employee magazine, "Foundations & Perspectives," in 2009. Since then we have strived to communicate stories that demonstrate our commitment to our mission – Serve, Preserve and Inspire.

Tholos Magazine cover, Volume 7 Winter 2018. Tholos Magazine cover, Volume 6 Fall 2017. Tholos Magazine cover, Volume 5 Summer 2017.

Tholos Magazine cover, Volume 4 Spring 2017. Tholos Magazine cover, Volume 3 Fall 2016. Tholos Magazine cover, Volume 2 Summer 2016.

Tholos Magazine cover, Volume 1 Winter 2016.