Which country is NOT part of the New World wine regions?

The correct choice is Italy, as it is classified as an Old World wine region. Old World wines are typically produced in countries with a long-standing historical tradition of winemaking, particularly in Europe. Italy embodies this heritage with its ancient vineyards and a diverse array of indigenous grape varieties, as well as a wine culture that dates back thousands of years.

In contrast, the United States, New Zealand, and Chile are all representative of the New World wine regions. These countries emerged as significant wine producers more recently, particularly from the 20th century onward, and they often employ modern techniques and technologies in viticulture and winemaking. Additionally, New World wines tend to reflect a different set of characteristics compared to their Old World counterparts, often focusing on fruit intensity and accessibility. Thus, Italy's longstanding tradition positions it firmly in the Old World category, distinguishing it from the New World regions of the other choices.