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At the AOC we are leading the effort to conserve energy across Capitol Hill.

Featured

John Adams Building Monumental Door
AOC is replacing the original, historic bronze doors of the Library of Congress...
  • SERVE
  • PRESERVE
  • INSPIRE

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

OUR STORIES

A visitor guide interacts with guests in the U.S. Capitol Visitor Center's Emancipation Hall.
A visitor guide interacts with guests in the U.S. Capitol Visitor Center's Emancipation Hall.
By the Numbers: Capitol Visitor Center
Circular fountain on the U.S. Capitol's West Front.
Circular fountain on the U.S. Capitol's West Front.
Calm and Collected Waters
The Main Reading Room of the Library of Congress Thomas Jefferson Building.
The Main Reading Room of the Library of Congress Thomas Jefferson Building.
Architect's Notebook: Finding...
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