The term 'Italian Staircase' is a reference to the architectural feature known as a 'Scala, ' which is an Italian word for staircase. It is a type of staircase that is typically found in Italian architecture, and is characterized by its grandeur and ornate design. The staircase often has multiple flights of stairs, with landings in between, and is usually made of marble or stone. It is a popular feature in many Italian villas and palazzos, and is a symbol of Italian culture and history.