He represented the United States at the 46th Venice Biennale in 1995 for which he produced a series of works called Buried Secrets, including one of his best known works The Greeting, a contemporary interpretation of Pontormo's The Visitation.
1995 representerade Viola USA på den 46:e Venedigbiennalen för vilken han producerade en serie verk kallade Buried Secrets som innehåller ett av hans mest kända verk The Greeting, en samtida tolkning av Pontormo's Visitationen.