Archaeological evidence suggests that grapevines have been grown and cultivated in what is today modern Austria for over four thousand years, making it one of the oldest wine producing countries in the world. Over the centuries, relatively little has changed in Austrian wine, with the dominant grape varietals continuing to be Grüner Veltliner, Zweigelt, Pinot Noir and others. Austria is renowned for producing excellent and characterful dry white wines, although in the eastern part of the country, many wineries specialist in sweeter white wines made in a similar style to those of neighboring Hungary. Today, Austria has over fifty thousand hectares under vine, split over four key wine regions. The domestic wine industry remains strong, with Austrians drinking their local produce outside in the summer, and people around the world are beginning to once more rediscover this fascinating and ancient wine culture. Riesling grapes have been grown in and around central Europe for centuries, and over time, they became the lasting symbol of south Germany's ancient and proud wine culture. Whilst the reputation of German wines abroad has in the past been mixed, the Germans themselves take an enormous amount of pride in their wineries, and Riesling grapes have now spread around the globe, growing anywhere with the correct climate in which they can thrive. Riesling grape varietals generally require much cooler climatic conditions than many other white grapes, and they are generally considered to be a very 'terroir expressive' varietal, meaning that the features and characteristics of the terroir they are grown on comes across in the flavors and aromas in the bottle. It is this important feature which has allowed Riesling wines to be elevated into the category of 'fine' white wines, as the features of the top quality bottles are generally considered to be highly unique and offer much to interest wine enthusiasts.