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Visitors can tour many highlights on Capitol Hill without registering.

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The Architect of the Capitol has a legacy and ancestry that is rooted in the...

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The Architect of the Capitol employees who commute to the United States Capitol...

Library of Congress – John Adams Building

The second building constructed for the Library of Congress (LOC) opened in 1939. For years it was known simply as "The Annex" before being named for President John Adams.

Full details on the John Adams Building and other LOC destinations are at aoc.gov/library-congress.

Location information: 
John Adams Building
120 2nd St SE
20002 Washington , DC
United States
38° 53' 18.4632" N, 77° 0' 10.008" W
District Of Columbia US
Location type: 
Destinations