Chardonnay grapes are relatively adaptable, and as such are grown all over the world.  Although France and Napa Valley are the two best known regions for growing, other areas like Australia, Argentina and South Africa are becoming more popular.  Since the grapes tend to be “neutral” in flavor, the taste of the final wine is heavily influenced by differences in soil, climate and the winemakers vinification techniques.   For example wines aged in oak barrels will taste richer, creamier and smokier, whereas wines aged in stainless steel barrels (aka “unoaked”) will be crisper, and more fruity.  For this reason, it’s best to ask your local wine shop for recommendations if you’re looking for a particular style.