Here are 10 interesting facts about wine:

1. Wine is made from fermented grapes, but it can also be made from other fruits like apples or berries.
2. The oldest known winery was discovered in Armenia and dates back to around 4100 BC.
3. The color of wine comes from the skin of the grapes used to make it. Red wine is made with red or black grapes, while white wine is made with green or yellow grapes.
4. The bubbles in champagne and other sparkling wines are created by a second fermentation process that happens in the bottle.
5. The tannins in red wine come from the skins, seeds, and stems of the grapes used to make it, and they can give the wine a bitter or astringent taste.
6. Wine is often aged in oak barrels, which can give it flavors of vanilla, spice, or toast.
7. The alcohol content of wine can range from around 5% to over 20%, depending on the type and style of wine.
8. Wine can be stored for years or even decades, and some wines can improve with age.
9. Different types of wine glasses are designed to enhance the flavor and aroma of different types of wine.
10. Wine has been a part of human culture for thousands of years and is enjoyed all around the world.

Also, There are a known 10,000 grape varieties throughout the world. Grapes are the most important commercially grown fruit in the world. Grape skins contain the bitter tannins, which provide structure to a wine and help to preserve it. One grape cluster equals one glass of wine.