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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.
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Adjacent to the U.S. Botanic Garden Conservatory with entrances from Independence Avenue, Maryland Avenue (at 3rd street) and from the Conservatory Terrace.
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This historic Lord & Burnham greenhouse contains two courtyard gardens and 10 garden rooms under glass, totaling 28,944 square feet of exhibition space.
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Bartholdi Gardens serves as a home landscape demonstration garden and showcases innovative plant combinations in a variety of styles and design themes.
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The offices of the United States Botanic Garden's (USBG) executive director are located in a residential building at the south end of Bartholdi Park.
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Completed in 1992, the Thurgood Marshall building cost $101 million, providing more than 600,000 square feet of rentable space within its overall million-square-foot interior.
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The design of the Supreme Court building achieved a balance between classical grandeur and quiet dignity, appropriate for the nation's highest court.
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Brumidi created the overall design for the corridors and directed its execution by artists of many nationalities. His immediate assistants included Italians Albert Peruchi and Ludwig Odense, Germans Joseph Rakemann and Henry Walther, and an English artist, James Leslie.
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The Richard Brevard Russell Senate Office Building (1903–1908) is the oldest of the Senate office buildings as well as a significant example of the Beaux Arts style of architecture.
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The Philip A. Hart Senate Office Building is the third and newest office structure designed and built to serve the United States Senate.
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The Everett McKinley Dirksen Senate Office Building was the second of three office buildings constructed for the United States Senate.
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Until the Thomas Jefferson Building opened in 1897, the Library of Congress was housed in the U.S. Capitol's west center building.
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The Packard Campus of the National Audio-Visual Conservation Center is located on 45 acres near Culpeper, Virginia, 75 miles southwest of Washington, D.C.
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The John Adams Building contains 180 miles of shelving and can hold ten million volumes. When it opened in 1939, it tripled the Library of Congress' shelving capacity.
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The Madison Building is an unusual combination of a national shrine contained in a working building serving both as the Library's third major structure and as this nation's official memorial to President James Madison.
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The Rayburn House Office Building is the third and largest office building constructed for the use of the House of Representatives; it contains three artworks depicting its namesake. It occupies a site south of the Capitol bounded by Independence Avenue, South Capitol Street, C Street SW and First
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The Thomas P. O'Neill Jr. House Office Building is the fifth office building now occupied by the U.S. House of Representatives.
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Completed in the spring of 1933, the seven-story Longworth House Office Building is the second of three office buildings constructed for the United States House of Representatives.
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The Cannon House Office Building (constructed beginning in 1905 and completed in 1908) is the oldest congressional office building and a significant example of the Beaux Arts style of architecture.
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The Capitol Power Plant provides steam and chilled water used to heat and cool buildings throughout the U.S. Capitol campus.
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The Gerald R. Ford House Office Building, acquired by the Architect of the Capitol in April 1975, is the fourth of the current office buildings occupied by the U.S. House of Representatives. It is located southwest of the Capitol on city Square 581, a site bounded by 2nd Street, 3rd Street, D Street
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Resources available to Capitol Hill employees including information for Architect of the Capitol jurisdiction superintendent offices, the Capitol flag program, online service requests and more.
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What can visitors see and do in winter? Trees and Blooms of Interest Several species of trees — whether deciduous or evergreen — offer winter wonder for visitors to enjoy: Witch Hazel ( Hamamelis virginiana ) blooms in late winter. American Holly ( Ilex opaca ) features glossy green leaves and
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What can visitors see and do in summer? Fountains Although the water features maintained by the Architect of the Capitol (AOC) are not designed for humans to recreate in, several crowd-pleasing pools of cool are located near the U.S. Capitol including the Capitol Reflecting Pool , Senate Park
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What can visitors see and do in spring? Blooms Abound Washington, D.C.'s famous cherry blossoms herald spring, peaking around late March and early April. More than one million visitors arrive in the District every year, drawn primarily to the cherry blossom trees lining the Tidal Basin. The U.S
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What can visitors see and do in fall? Leaf Peeping The U.S. Capitol Grounds are a showcase for the many hues of fall, given the number and diversity of large and historic trees comprising the arboretum. The top 10 tree species to seek out for fall color enjoyment are: Bald Cypress, Sugar Maple, Red
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Our unique portfolio of responsibilities creates models for other communities of practice. AOC is committed to being professionals and leaders in our respective arts continuing, establishing and evolving techniques and processes in our fields. A sampling of these partners is below.
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Explore areas of the north side of the U.S. Capitol including Brumidi Corridors, the Senate Chamber, small Senate rotunda and old Senate Chamber.
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Explore the U.S. Supreme Court facilities cared for by the Architect of the Capitol.
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Explore the U.S. Senate office buildings cared for by the Architect of the Capitol.