Designation for the geographical areas where, under optimal conditions, quality viticulture is possible and vines can thrive well. This is also where 95% of the most important wine-growing areas are located. They are located from the 40th to 50th north and from the 30th to 40th south latitude. However, there is also viticulture in between in mostly higher altitude areas. A list of all wine-growing countries can be found under the relevant continents. The criteria for the suitability of a region for viticulture are called viticultural suitability. On the subject complex, see also under climate, climate change, highest vineyard, northernmost vineyard and southernmost vine yard, and also under records.