 Rebecca <unk> used their exposure to European country estates to design a lavish new building for their <unk> estate during their English <unk> . Designed with the assistance of French architect Joseph @-@ Guillaume <unk> and probably also influenced by the works of English architect Sir John <unk> , the house that was built upon their return to the United States in 1804 ( now known as <unk> Place ) is one of the finest extant examples of <unk> architecture . 
