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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.
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.
Programs & Events
Four Sustainable Practices from Our Grounds to Yours
At the Architect of the Capitol (AOC), the Capitol Grounds and Arboretum team works hard to promote green and sustainable practices around the Capitol campus.
Public Notice
Tree Dedicated Honoring the People of Wisconsin
Located on the West Front grassy area near First Street, NW, and Garfield Circle.