Have you ever noticed how wine comes in different bottle shapes? It turns out there are four basic types of bottles that run the gamut from tall and skinny to heavy and curvaceous. They all contain the same amount of wine—750 milliliters—so why isn't there just one standard size? Like a lot of things when it comes to winemaking, it has something to do with tradition. Over time, the major wine-growing regions developed bottles that best suited their varietals. The shouldered bottles from Bordeaux and Burgundy, for example, both developed a reinforcing indentation at the base of the bottle (known as a punt) to help withstand turbulent trade routes. Of course, while the shape can tell you the type of wine, it can't say anything about the quality of what's inside.