Tuscan wine is Italian wine from the Tuscany region. Located in central Italy along the Tyrrhenian coast, Tuscany is home to some of the world's most notable wine regions. Chianti, Brunello di Montalcino and Vino Nobile di Montepulciano are primarily made with Sangiovese grape whereas the Vernaccia grape is the basis of the white Vernaccia di San Gimignano. Tuscany is also known for the dessert wine Vin Santo, made from a variety of the region's grapes. Tuscany has forty-one Denominazioni di origine controllata (DOC) and eleven Denominazioni di Origine Controllata e Garantita (DOCG). In the 1970s a new class of wines known in the trade as "Super Tuscans" emerged. These wines were made outside DOC/DOCG regulations but were considered of high quality and commanded high prices. Many of these wines became cult wines. In the reformation of the Italian classification system many of the original Super Tuscans now qualify as DOC or DOCG wines but some producers still prefer the declassified rankings or to use the Indicazione Geografica Tipica (IGT) classification of Toscana. Tuscany has six sub-categories of IGT wines today.