Prosecco is an Italian white wine, which originated in the village by the same name near Trieste. Its controlled designation of origin can be spumante (“sparkling wine”), frizzante (“semi-sparkling wine”), or tranquillo (“still wine”). It is made from Glera grapes, but other grape varieties may be included. The following varieties are traditionally used with Glera up to a maximum of 15% of the total: Verdiso, Bianchetta Trevigiana, Perera, Glera lunga, Chardonnay, Pinot Bianco, Pinot Grigio and Pinot Noir. Prosecco DOC is produced in nine provinces spanning the Veneto and Friuli Venezia Giulia regions. The DOCG designation comes in two varieties: Conegliano Valdobbiadene Superiore DOCG, which can only be made in the Treviso province of Veneto on the hills between the towns of Conegliano and Valdobbiadene (north of Treviso), and the smaller Asolo Prosecco Superiore DOCG, produced near the town of Asolo.