The term Capitol Architect Benjamin refers to the American architect Benjamin Henry Latrobe. He is best known for his work on the United States Capitol in Washington, D.C., where he served as the first Architect of the Capitol from 1803 to 1817. He was also responsible for designing many other public buildings and monuments in the early 19th century. Latrobe was a pioneer in the use of new materials and technologies, and his work helped to shape the architecture of the United States.