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Clark's Legacy
Each Architect of the Capitol helped shape the iconic buildings and grounds we know today.
Capitol Dome
The U.S. Capitol’s dome made of cast iron was designed by Thomas U. Walter and constructed from 1856-1866 at the total cost of $1,047,291.
Olmsted Terrace
In 1874, Frederick Law Olmsted was charged with devising a comprehensive landscape scheme for the U.S. Capitol. Olmsted's major concern was the visual presentation of the Capitol Building and the support of its daily functions.
Thomas Jefferson Building
Until the Thomas Jefferson Building opened in 1897, the Library of Congress was housed in the U.S. Capitol's west center building.