Serving Congress and the Supreme Court, preserving America's Capitol, and inspiring memorable experiences

Featured

History of Capitol Hill
The U.S. Capitol was built atop Jenkins’ Hill, now often referred to as “...

Featured

Getting Here
Located at the center of Washington, D.C., the U.S. Capitol Building and other...

Featured

Stephen T. Ayers, FAIA, LEED AP, Architect of the Capitol
On February 24, 2010, President Barack Obama nominated Mr. Ayers to serve as...

Featured

Paul Pfau photo.
Come hear local musician Paul Pfau perform at the U.S. Botanic Garden on...

Materials

  • Marble
    Marble is used throughout the U.S. Capitol Building, the congressional office...
     
  • Cast Iron
    Cast iron was used extensively in the U.S. Capitol’s mid-19th century House...
     
  • Sandstone
    Sandstone was a common building material during the early years of Washington...
     

The materials used in the construction of the Capitol were chosen with care to ensure the building would be a lasting landmark. Learn more about these building materials, why they were used, and where they came from.

Is a Video: 
0