Architecture of Washington DC See Also 1792Architecture of Washington DCJames Diamond Random Building 1866 – Dome of the U.S. Capitol, Washington D.C. 1792 – Design for Congress House, Washington DC Home / Buildings / Architecture of USA / Architecture of Washington DC / 1792 – Design for Congress House, Washington DC Architect: James Diamond Proposal for a Congress House by James Diamond, 1792. Share this:TwitterFacebook Related Posts See Also Related Posts Latest Additions 1796 – Former Town Hall, Naas, Co. Kildare 1834 – Hammersmith Ironworks, Ballsbridge, Dublin 1895 – Interiors, No. 4 Parnell Square, Dublin 1890s – Former Great Southern Hotel, Caragh Lake, Killorglin, Co. Kerry