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Visitors can tour many highlights on Capitol Hill without registering.

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Official painted portrait of 11th Architect of the Capitol Stephen T. Ayers.
On February 24, 2010, President Barack Obama nominated Mr. Ayers to serve as...

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AOC's John Lamberton, Assistant Supervisor, selects the proper copper pipe size for a job.
While the most frequent calls from building occupants are related to climate,...

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