Our Work

A Tradition of Ingenuity

Our work inspires a nation. We are the artisans, historians, and craftspeople who preserve and maintain the landmark buildings, monuments, art and grounds of the Capitol campus.

Buildings & Grounds

The Capitol campus is made up of more than 18.4 million square feet of facilities, and 570 acres of grounds.

Discover the Campus

Projects

We ensure every visitor to Capitol Hill experiences the grandeur of these historic treasures at their very best.

Our Work

Art & Artists

We are responsible for the care of thousands of works of historical art.

View the Collection

Stories

New & Noteworthy

Delve deeper into the stories behind the people, art, history and grounds that make up the Capitol.

Person standing in an aisle between shelves.
Behind the Scenes

AOC Experts Keep it Cool for Historic Preservation Efforts

When it comes to preserving the Library of Congress' record-breaking collection of more than 175 million items — including books, historical materials and cultural artifacts — the Architect of the Capitol staff plays an instrumental role in keeping things cool.
A tree on the U.S. Capitol campus.
History & Discoveries

The Original Olmsted Trees

Celebrating the history of tree planting and tree preservation at the U.S. Capitol Grounds by highlighting some of the oldest trees on the grounds.

More Stories

A talented employee of an Architect of the Capitol sheet metal shop.

Expertise

Skillful Craftmanship

We serve in diverse roles applying both modern techniques and historical tradecrafts in the care and preservation of the Capitol campus.

Areas of Expertise